Not enough server storage

Tue, 2007-07-17 11:58 by admin · Forum/category:

Error messages:

  • Not enough server storage is available to process this command.
  • Not enough memory to complete transaction. Close some applications and retry.

These error messages on a computer, which we will call computer A, can indicate the IRPStackSize bug on the other machine, the server that has the share, which we will call computer B. Go to that other computer, B, open the event log, and check for event ID 2011. If this is present, it is a strong indication for this particular bug. The two computers again:

  1. The computer trying to access a share on the other computer over the network, displays the error message, "Not enough …". Let's call this one the client.
  2. The server where the share is, needs to have its IRPStackSize parameter increased. Let's call this one the server, even if it is just a desktop computer.

To repair it, you have to set or increase the IRPStackSize parameter in the registry on the server where the share is, i.e. on computer B.

There are many reports (below), indicating that a value of 15 is not enough, and only values in the range of 16 to 25 solved the problem.

The most successful values used to be 16 and 18, but recently we have more reports of 20 and more. If you want to solve the problem quickly, try 20.

It is not quite clear whether higher values incur any cost in terms of memory usage or performance, but it is conceivable that they don't. If so, then we probably should just set the value to its maximum of 50 and forget about it.

And don't forget to reboot after each change, because only that makes the new value effective. Thanks to everybody who tested and reported!

Please add a comment below to report which value you used to make it work. If you find the time to experiment, please report the lowest value that worked. Please try also to set it back to a lower value and recheck whether that indeed makes it fail. Reboot after each change.

Here is the offending registry value:

IRPStackSize DWORD 0x0000000f (15)

Check for the presence of the value named IRPStackSize. If it doesn't exist, create it as type DWORD and make sure you have the capitalization absolutely correct (5 upper case, 7 lower case characters), because the system strangely seems to depend on that. Make sure also that you haven't by mistake added a leading or trailing space as described in this comment below.

With base set to decimal, enter the value 16 or higher. 15 is the default, so entering 15 should have the same effect as removing that value altogether.

Reboot the computer (or restart the server service, as described in the comment below: Worked for me).

Certain software, when installed on the server, also causes this error. One frequent culprit is

  • Norton AntiVirus,

which tends to change the registry parameter. See also: How to remove Norton software. Other culprits seem to be

  • Acronis TrueImage, version 10 or 2009 or higher,
  • Seagate DiscWizard (a rebranded version of Acronis TrueImage),
  • IBM AntiVirus,
  • Microsoft's Bitdefender, and
  • Symantec EndPoint Protection (version 11+),
  • AVG 2011+.

Some reports state that only uninstalling solves the problem. If you have such a case, please report your findings here.

Check also this Microsoft Knowledge Base article. It does not mention Windows XP, but applies to XP as well.

Antivirus Software May Cause Event ID 2011 (Q177078)

The other computer

Sat, 2009-11-21 13:52 by admin

Have you done it on the other computer?


Sat, 2009-11-21 13:54 by darknodar123

What do you mean the other computer?I only have one.

Different problem

Sat, 2009-11-21 18:11 by admin

In that case your problem is different and not described here. The problem described in the article above occurs only when you connect two computers through a network.


Sat, 2009-11-21 18:25 by darknodar123

Ok..Do you have any suggestions in my case??

I run vista home basic.Hope you will have some :)


Sat, 2009-11-21 19:22 by admin

no idea on this one.

Damn Acronis

Wed, 2009-11-11 05:29 by jiddu

17 did the trick for me.. I had a suspicion it was Acronis but its getting so much mention on computer forums I didn't want to believe it. Everything works fine now. Thank you!

Aspire H340 get error when trying to access remote desktop

Sat, 2009-11-07 20:37 by linenoise

I read all of the comments and change the IRPStackSize ranging from 15 - 50 which does not seem to fix my issue.

Here is my situation.

I am running a windows home server with the following configuration:
Server OS: Windows Home Server (based on server 2003)
Hardware: Aspire easyStore H340 This is an OEM machine based on the Atom processor with 2 gigs of memory
The server is a headless unit with no access to a monitor port, keyboard or mouse. Yes I opened the computer and inspected the motherboard directly, nothing.

I am getting the following error message when I try to remote desktop in.

"cannot log you on due to the following error:
Not enough storage is available to process this command"

When I try to use the windows home server connector to log in it seems to process for a moment then does nothing and goes back to the login prompt.

What I have tried so far:
I removed the os drive from the server and connected it to another PC with keyboard and monitor and booted the home server from that machine. This caused the windows 2003 server to prompt me to register. I am assuming the reason was because it is some how keyed to the OEM hardware. I was careful not to load any new drivers due to finding new hardware the new PC as I didn't want this to affect the OEM server configuration where it might require user input. I registered the OS and proceeded to make the recommended changes here. I used the following settings for the IRP StackSize, 15,16,18, 30, 50 returning the drive to the OEM hardware server each time to try and access. None of these seams to work.

The strange thing is that I am able to access all the shares from my windows 7 machine with no problems. This seems to only effect the remote login. The problem occurred shortly after I installed freeproxy. I uninstalled freeproxy and set the IRPStackSize to 50 with no resolution. I turned off the firewall, "using bit defender 2010"

I am at a loss as to what else it can be.

I would appreciate it if anyone can help.

Bit defender 2010 is the root

Sun, 2009-11-08 15:06 by btonev

We have similar problem on several instalaltions and we were searching for solution.
When I saw that you have exactly the same problem and you use Bitdefender, I decided to uninstall it, because we had a previous strange problems which was caused by Bitdefender. And it helped again!
By some reason sometimes Bitdefender is going "crazy"

Give it a try

I'm trying now to reinstall Bitdefender and get it to work

Yep uninstalling bit defender 2010 did the trick

Sun, 2009-11-08 16:02 by linenoise

Thanks for the suggestion. I removed bit defender from the server and everything is back to normal. Let me know if reinstalling bit defender caused the issue to reapear. I would hate to lose my firewall and antivirus on the server. Or perhaps some other recommendations for anti-virus alternatives with extremely low overhead. I would prefer to get bit defender working if possible since I already paid for it. One note to add the problem occurred with bit defender after I installed freeproxy not sure if there is a correlation.

Thanks again.

It seems it's a major BD problem

Sun, 2009-11-08 17:20 by btonev

I'm glad that you've been able to solve the problem.
This is what I found:
Even if our simptoms are not exactly the same i beleive that the problem is caused by it, with recent update.
Unfortunately with reinstallation the problem occurs again.
So we have to wait for solution from BD team.
I hope that they will do so, because as I had mentioned we have quite a lot installations of BD IS.


P.S. I have tryed various values as suggested in main article, but none of them helped. It seems that bitdefender messes with the IP stack even with firewall off!

Acronis True Image Home 2010 fix

Sat, 2009-11-07 00:14 by Gus mervin

Excellent fix! Thanks.
This error occured after installing Acronis True Image Home 2010.
I set the value to 20 and I am able to share the pc on my network again.
Good work.

Not enough server space

Thu, 2009-11-05 22:08 by NOVICE

I have three xp computers on my network. All have Acronis & Norton installed. I keyed in the above(abbreviated message) when I could not share on one of the computers.

I had to expand the stack to 22, but it worked very well. I am impressed by this site.

Recent Acronis AND Norton 360 Installs

Tue, 2009-11-03 04:04 by ItsJoeK

You guys rock! This error just started popping up after 2 yrs of hassle free file sharing between XP Pro and Vista.

Uninstalling was not an appealing solution. I tried just adding the registry key IRPStackSize (mine didnt exist at all, let alone have a value, i set mine to 22 since that seemed to work for a poster using a similar set up to mine) and rebooted "Machine B".

Went back downstairs to Machine A and entered my path \\MachineB\blahblah and it connected in a snap. Just like the good old days.

So looks like I got it solved without uninstalling anything.... so far :)

I am now making a donation because this was the fastest resolution to any Winblows problem like this - and there have been tons - EVER!

Thanks again.

Try to reduce

Tue, 2009-11-03 08:52 by admin

Good to hear that this article helped.

You could try to reduce the value down in steps towards 15, and after each step check whether it still works. Apparently the IRP stack occupies some resources that could be freed.

I must admit though that I do not know exactly what and how heavy these resources are. If anybody knows, please tell everybody here.

Segate DiskWizard

Mon, 2009-11-02 13:07 by not2technical

That was definitely the culprit. Installed it Friday to clone my drive and "not enough storage." Added the IRPStackSize DWORD 0x0000000f (16) parameter and its all working again. Thanks.

f is 15

Mon, 2009-11-02 15:05 by admin

Hexadecimal F (for example, 0x0000000f) is 15, not 16.

But in many cases adding the value 15 solves the problem, while some servers need 16, 18, or more.

Note that you have the choice in the registry editor to enter the value in hexadecimal (f, 10, 12, etc.) or decimal (15, 16, 18, etc.). The end result is exactly the same.


Wed, 2009-10-21 05:06 by Maxbeep1

I have 4 computers in my home network. All use XP, the one I call "the server" is tied to our large format printer, and serves as a print server, and backup storage. I recently upgraded the size of the hard drive and used Acronis to clone the new drive. It wasn't until I needed to move some files to the USB external drive attached to "the server" did I notice that I could see "the server" from every other computer, but could not get onto any drive, and would get the error "not enough storage space"... I tried everything, then I found this page, late last night. I had to wait till I got home from work this evening, but all I did was to remove Acronis, and VIOLA' everything worked fine again. I did not have to edit the registery....thank goodness for this site... My advice to Acronis users is to install, use, and remove.

You're welcome

Wed, 2009-10-21 15:09 by admin

Glad you could pull that critter out, the bug along with the whole Acronis program.

I'm still wondering what the heck Acronis does to the computers, so they suddenly need extra IRPStackSize.

Yes! Yes! Yes!

Tue, 2009-09-22 14:14 by teedee

Acronis TrueImage & 16 is the go.

Didn't realise that Stack Sizes were an issue any longer. Used to set them back in the dream time but have thought nothing about them until now.

Norton will never be an issue with me for problems. Will not even look at a computer, let alone touch it if I so much as hear that N word.

Sometimes 16 is enough

Tue, 2009-09-22 15:23 by admin

and sometimes not. Thanks for reporting. It seems we'll have to keep using trial and error. At least we have a workaround.


Thu, 2009-09-10 20:44 by chasrome

This tip worked for me. The most important part of the tip is that the problem is on the computer where the share is. For me the IRPStackSize on this computer was already set to 18. I changed the 18 to 22 and was able to share all folders.

I have had three computers networked (Ethernet) for the last six years (different machines at different times) one with Win98 and all the others with WinXP (various SPs). NEVER saw this problem before now. However, I started using Acronis last year in the Seagate version and then (foolishly) purchased the full Acronis version and then upgraded that. I recently installed the Acronis product on my newest machine after which my sharing problems began. This is what made the tip so valuable - who would have guessed that the old computer was where the parameter needed to be changed! This seems to be fixed FOR NOW. But judging from my experience (18 did not work) and from some of the later posts, there is likely more going on here. I sure would like to find a less troublesome replacement for Acronis for imaging though. Have you ever noticed how many processes and registry entries Acronis puts on a machine?

P.S. At the same time I am wrestling with the sharing problem, I noticed that on my new powerful Workstation (with very little software yet installed) that I started getting freezes sometimes when I tried to clear the Taskbar Start Menu. Instead of clearing in a few seconds (at most), it was taking up to three MINUTES and sometimes required halting Explorer to clear. This weird behavior also began with the installation of Acronis. The system is still sick and I plan to uninstall Acronis (if one can get a clean uninstall with this product) and see if this improves the Start Menu clearing problem.

Acronis problems

Fri, 2009-09-11 05:50 by admin

My usual experience with various Russian software is good, but Acronis may have gone overboard and made its software too intrusive and too heavy.

Too bad that there isn't much choice in this field these days, when one is looking for something like Acronis light.'s picture

Vista (server 32-bit) & XP (client)

Mon, 2009-08-31 10:52 by

Thanks. It worked for me. I placed a decimal value of 25 in Vista (as the server), and XP Prof is the connecting client.
I only experienced this problem after installing Norton Internet Security 2009 yesterday.
The day before installing Norton, I was focusing on this error "the server cannot perform the requested operation" in the same XP machine, I installed LLTD in XP client and still observing, but it seems to be working now coz I haven't received that error "the server cannot perform..." yet as it was replaced by the error "not enough server storage." :-)
For those having an error with "the server cannot perform..." you may want to visit this link

I nearly freaked out fixing the wrong computer!!!

Sun, 2009-08-30 16:41 by madrus

Hey guys, thanks everyone for useful comments. I did finally manage to solve this server strorage problem. From my Windows 7 machine I was trying to map the network share on my Windows XP machine. I have Acronis True Image (which I passionately love!!!) installed on both machines. I was playing around with this IRPStackSize entry on my Windows 7 machine and it just would not work. I started by 15 and went as high as 50. No chance!

When I almost committed suicide of frustration that I would have to remove the True Image, it just came across my mind that maybe I was fixing the wrong side. I did indeed!!! As soon as I set the IRPStackSize parameter to 18 on my Windows XP machine, I could map the network share. Wow! Thanks a lot for this discussion!!!

Glad you made it

Sun, 2009-08-30 16:59 by admin

Reading helps, as this is the first thing the article above explains.

Not Enough Server Storage

Sun, 2009-08-16 16:36 by TeeBoxHog

After fiddling around with the IRPStackSize setting many, many times to no avail, I found a hint in a posting about Acronis. I opened SeagateDiskWizard and ah ha! "powered by Acronis". I uninstalled SeagateDiskWizzard and now I can get to the shared folders on my laptop. I have IRPStackSize set to 50. I think I'll go lower it to something more reasonable.

Not enough server storage

Fri, 2009-08-14 14:45 by squint52

I added the IRPStackSize several weeks ago when this problem first started to apppear. The network has run great since until today. After the server recieved an automatic update from MS the problem appeared again. I tried to increase the stack size but when I entered regedt32 the server reported back with "Insufficient resources to complete the requested service". Any thoughts

Cannot start regedt32?

Fri, 2009-08-14 14:51 by admin

Which version of Windows is that?

Thank you, thank you, thank you! It was Acronis!

Sat, 2009-08-08 00:08 by Airidh

Thank you so much! I have spent hours trying to solve this. Who would have thought ....?

On my network I have 2 PCs - here are the specs:
1. PIII866, 512 ram, 80G HDD, Windows 98
2. Celeron 1.8, 768 ram, 1x40G + 1x200G HDD, XP SP3.
ZoneAlarm too, so I suspected it first :-( .

Suddenly from the W98 m/c I was unable to access the XP one, which I'd done often before. Explorer showed the XP one, I was able to expand the entry to see its partitions, but when I tried to expand further this message appeared:

\\Amethyst\backup2(m) is not accessible
Not enough memory is available. Quit some programs.

I won't go into everything I tried, but it was all on the W98 machine as I thought the fault lay there. Never thought of the XP one as it could see the other just fine.

I realised I had just upgraded Acronis TrueImage from 9 to 11. I uninstalled it, and now everything works just fine. When I have some spare time I will try juggling Acronis and ISPStackSize [correction: IRPStackSize] to get them both working. I will also contact Acronis (more spare time?).

Joined to thank you and vote you all the stars: I will donate, and return to the site in the future.

The perpetual "not enough server storage" problem & Acronis

Wed, 2009-08-12 07:52 by emeritus

I must say like Airidh 09-08-08: Thank you, thank you, thank you! It was Acronis! Like he said: "Other culprits seem to be Acronis TrueImage, version 10 or higher". My version was Acronis Home version 12. Acronis recognizes this problem talking about IRPStackSize like almost everybody in the net, but no changes in that value help. I wonder why Acronis does not recommend to remove itself...


Wed, 2009-08-12 07:56 by emeritus

I meant Acronis Home version 2009, not version 12

Thanks for reporting

Wed, 2009-08-12 10:09 by admin

Thanks for reporting this, including the particular version.

By the way, here you can edit your own comment and even delete it. So no need to add an extra comment for a correction.

Thank you too

Sat, 2009-08-08 07:26 by admin

Thanks for reporting.

I'd be very interested to learn whether you can get Acronis TrueImage to work without this error. The fear is that the cause is deeper and cannot be fixed just by increasing the IRPStackSize parameter.

By the way, you wrote, "ISPStackSize", which I assume was a typo. I have added a correction to "IRPStackSize" in your preceding comment to avoid mistakes by other readers.

Acronis is the bad guy....

Fri, 2009-08-07 06:00 by zzOtherlandzz

I was VERY close to just throwing in the towel and re-formatting, but stumbled upon this site and this thread. My problems started when I used this PC to clone a laptop hard drive with Acronis. It cloned the drive great and I had a perfect back up of my laptop to keep in a safe place. I tried all kinds of different values for the IRPStackSize and nothing seemed to work. Turns out just un-installing Acronis did the trick for me. Its 2am now so i'm off to bed..... but wanted to say thanks first...


Thanks for reporting

Fri, 2009-08-07 10:11 by admin

I have amended the main article at the top to reflect the information that only uninstalling the culprit, in this case Acronis TrueImage, solved the problem. I assume it was TrueImage.

Not enough server storage.

Wed, 2009-08-05 15:08 by mike_flood

I had the problem but when I looked in the registry at the noted location I couldn't find ANY such line (IRPStackSize DWORD 0x0000000f (15) )
So I crossed my fingers, then uncrossed them (I can't type with my fingers crossed)
and added IRPStackSize DWORD 0x0000000f (15) as a new DWORD item.
That solved the problem. The network had worked in the past and I have no idea how that line got removed.

Thanks for helping with this.


paultarcha's picture

Not enough server storage

Sun, 2009-08-02 06:11 by paultarcha

Thanks for the great help. Ran into this problem before on another setup. This time it was access to a computer running XP PRO from a computer running Win2K PRO. Had to define IRPStackSize and set it to 15 on the Win2K.


Sun, 2009-08-02 12:20 by admin

This sounds unusual for two reasons.

  1. The setting is on the wrong computer.
  2. 15 is already the default.

I suspect that something else plays a role. Perhaps the error is sporadic.

Don't works

Wed, 2009-07-15 12:06 by arainziliel

I'm in a windows vista bussines, with the problem 'Not enough server storage is available to process this command' when i try to install windows vista compatibility with server 2003:

I tried to increase the IRPStackSize from 15 to 50, and don't works.

Please i need a solution for my work. Pleaseeeeeeee :(

What is the problem?

Wed, 2009-07-15 12:19 by admin

Please explain the problem. Otherwise it is difficult to help.

What did you do on which computer? On which computer do you get the error message? Did you already follow the advice in the article at the top? What happened?


Thu, 2009-07-16 06:43 by arainziliel


I'm in a new computer of the office where i work (i'm a student in practices):

Intel pentium Dual CPU E220 @ 2.20GHz 2.20GHz
RAM 2015 MB
Windows Vista Business 32 bits

Yesterday, I installed original windows Vista Business N, and only two aplications: Everest and Ethernet drivers (Intel). Moreover I download and install all the available updates with windows update.

Then, I tried to install windows vista compatibility with server 2003:

(in spanish, i'm from spain)

And when i clicked the package, windows showed the following error:

'Not enough server storage is available to process this command'

I followed the instructions of this article, but didn't works (increaseasing IRPStackSize to 20,30,40,50,100). Later I tried to reinstall windows installer, install the package in sure mode, and other solutions that i found in Google... but the problem persist.

Please help, i don't know what to do :(

More information

Thu, 2009-07-16 11:12 by arainziliel

In windows events appears the following error: (english translation from spanish)

Does not find the description of event id. 4373 in the origin SBSUpdate. The component that provokes this event is not installed in the local computer, or the installation is damaged. You can install or repair the component in the local computer.

If the event originated in another computer, the information that is going to appear had be to guard by the event.

The following information was included by the event:
Not enough storage is available to process this command

What component is that? I must to install it?

Same problems: Question about Size vs IRPStackSize

Mon, 2009-06-29 06:11 by mdover

Have a longstanding home network with various laptops for family members and never a problem running network wizard, enabling sharing, saying WORKGROUP, sharing a folder, and so on. After a new hard drive on our T61, and reinstalling XP from the IBM disks, coldn't connect due to the error ""not enough server storage is available to process this command". XP3 on all machines. There may have been Norton software and I would have uninstalled it as I use ESET Nod32 with no problem. Ran the Norton uninstall program anyway but that didn't fix it. Edited the registry to a value of 21, but it then says 33. It should say IRPStackSize Reg_DWORD 0x00000015 (21) or should it be 21 (33)?

Also, my the T61 has a DWORD value for "size" but none for IRPStackSize, whereas my new T400 has IRPStacksize but no Size. Any idea of the distinction?

I rebooted both computers and this doesn't fix the problem with it saying 21 (33) and 15(21) and neither works. Oh, ok, I see, it should have a DECIMAL value of 21. You have to click decimal rather than hexidedimal when editing with regedit. Still, that didn't work.

However, FROM that computer the T61, i can reach the other computer, so not to worry.

Mike - informed user is all

15 decimal

Mon, 2009-06-29 06:15 by admin

I don't know what the size parameter is good for. It's set to 2 on the machine I'm using right now. In any case it doesn't concern us here.

The default for IRPStackSize is decimal 15, which is hexadecimal F, so 0x0000000f (15) would reflect the default. If you don't have an IRPStackSize entry in the registry at all, then the computer automatically uses the default value of 0x0000000f (15), which we often find to be insufficient. Higher values are, for example:

0x00000010 (16)
0x00000012 (18)

etc. I have amended the main article at the top to show that as well.

The easiest way is to change the data entry type from hexadecimal to decimal, then entering the decimal value, like 16 or 18 or higher. Or, if you are a hardcore computer pro, you can enter the hexadecimal value, like 10 for a decimal 16, 12 for a decimal 18, etc. (:-) The computer stores it as a binary number, so ultimately it does not matter whether you enter it as a decimal or hex number.

Re: Admin Not Enough Server Storage

Wed, 2009-06-17 20:08 by Prescious

Hi, this has not worked for me. First of all I have 64bit vista and not 32bit vista. When I go to the dword next to it It says that dword is for 32bit vista. Then under that it has a qword which says for 64bit vista. So I choose the qword instead of the dword but not only am I not able to type in IRPStackSize but I'm not able to do it under qword either. Now admin when you made this topic, it was 2007, which I'm sure 64bit vista was not out by then. But what advice do you give for 64bit users who is unable to download the windows installer because of low storage. What's the advice for 64bit users to get us out of this mess? Please help me admin I really need to download this windows installer 3.1. Thanks

Hamachi works now

Thu, 2009-05-28 17:55 by jjourard

Hamachi file sharing, free version never did work for me until I created that registry key and set it to 17.
Now it does work.

Just a note: I added an

Tue, 2009-05-12 02:08 by joematt

Just a note:

I added an RPStackSize of 25 to A WinXP Sp2 x64 system and it worked.

Thank you.

Good Advice: It works!

Mon, 2009-05-11 07:46 by profman

My laptop can now finally see my desktop files after probably more than one year of this particular problem! (My testing is somewhat ongoing, and I have not yet checked the other computers in my home network.)

My desktop system has the SP2 XP Pro OS. Partitions "C" and "D" are on the boot HD whereas partition E is on a second HD.

A value of "16" (on the desktop system) for IRPStackSize was not effective. A value of "18" had the strange effect of making the sharing possible on the "E" partition, but not on the "C" or "D" partitions! A value of "21" succeeded in making all three partitions visible. The items that are peculiar to "E" is its location on a separate hard drive (on a separate HD controller) and the fact that its drive letter was re-assigned to "E" to work into my partitioning scheme.

Thank you for this solution! I wish that I had found it a year earlier.

PS: I have had several versions of Norton AV on this system and currently have Norton AV installed. I am in the process of migrating away from this program.


Mon, 2009-05-11 18:20 by admin

Thanks for the interesting information. There seems to be more to it than meets the eye.

By the way, install Service Pack 3. It is usually a good one.

IRPStackSize 16 not 15

Tue, 2009-05-05 08:31 by Murrayzz1

Having wrestled with this problem for years and given up, I encountered it again recently whilst installing a new PC and laptop, which I need to sync with each other, so I had to try again.

Changing the IRPStackSize to 16 did the trick, and I changed it back to 15 just to check. Sure enough it didn't work.

Thanks for providing the solution to this very irritating problem. Could someone tell Microsoft?

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