Once I realized that the 2011 event ID was occurring on the source computer (Windows XP) and not the target computer (Windows 7), I added the IRPStackSize parameter with a value of 20 to the Windows XP registry. It worked great. I have "Acronis True Image Home 2009" installed on this PC and did not have to uninstall it. I was then able to share folders between my Windows XP PC and my Windows 7 PC.

Thanks a bunch for this solution. :)

The solution worked great. I did not have to uninstall Acronis True Image 2010. Thanks! I'm going to report the problem to Acronis.

... and I've still got Acronis TrueImage 2010 installed - I didn't want to lose that, since it's my main backup app. I was afraid it was going to have to go, but I added an IRPStackSize parameter as instructed, set it to 20 (dec), rebooted the server (XP Home SP3) went to the netbook client (also XP Home SP3) where I'd got the 'Not enough server storage is available to process this command' on trying to access a shared folder on the server, and was able to open it and transfer files.

Lovely! Made my day! Thanks so very much! (I registered just so I could post this feedback.)

Thank you to whoever found this fix. My backup process from a Vista machine to an XP machine on my local network was working fine, until an update to Vista, XP, or ZoneAlarm Extreme Security broke the backup process. Adding the IRPStackSize key to the XP machine fixed the problem. Thanks again, John

I started experiencing this issue after installing Paragon Backup & Recovery 10.2. I didn't verify by uninstalling, but the registry change did fix the error.

Thanks to all for your input!

-Dr.Cy-

From Australia.

I had just reimaged my XP SP3 computer 4gb Main Memory with Acronis 2008 onto a new SEagate 1.5TB SATA disc, and was having issues with the new disc and thought it may have been Acronis V8. Installed Acronis V2010. Still had the same issues with the Seagate disk which is well covered on many forums. I then purchased a WD 2TB disc and Acronis 2010 worked perfectly.

Next day I had issues with network file shares, also simple commands freezing the screen for minutes, dragging applications across the screen left a vapour trail. Never happened before..

Found this Forum and ADDED the IRPStackSize as HEX 30.

ALL of the issues have gone..

Many thanks for an excellent Forum.. Donation coming now

I tried changing the IRPStackSize setting all the way to 50, didn't work. Finally uninstalled Acronis True Image and it works fine. Thanks for your help, would never have thought of that.

My new Windows 7 system could see the old XP on a home network, including shared folders, but I could not access them.
Followed the instructions using REGEDIT command on the XP and it worked first time.
I have Acronis Version 10 and Norton installed. I don't kinow which one caused the problem.

Removing DiscWizard solved the problem after reboot. Prior to reading this suggestion, I entered IRPStackSize 16 (prior was blank) but this did not solve the problem. Thanks

I have got this error when accessing to file share in our Win 7 - XP home network for some time (it works fine previously). I'd wondered the problem without solution a couple of nights. When I came to this site I realize that installing Acronis True Image caused the problem. I did increase IRPStackSize to 20, don't remove Acronis and everything works again!
BTW: Acronis is not as reliable as backup software should be, but it seems to be harmful in other way too...
I registered here just to say thanks !

Had to take the stack size to 25 to get around this one. Many, many thanks for the tip.

Another Acronis casualty. Changing the value to 20 fixed the problem!!!

Totally fixed the problem, now enabling my iMac and laptop to access my Win 7 desktop.
Acronis is a singularly bad piece of software for me...they were unable to provide an emergency boot CD that worked despite hours of trying, thus rendering the idea of backup useless, since there would be no way to restore. This is the nail in their coffin for me...NEVER will I buy or recommend Acronis again.

But you guys are brilliant, thanks for the great idea. It's a miracle!

I just recently added the IPRStackSize value on all of the computers in my XP workgroup and it worked like a charm.

I don't have any of the reported culprits installed. I set the value to 20 on all computers. So far, so good!

Thanks for the help!

I run VMware Workstation - typically running 2 or 3 virtual machines on my notebook (the host machine). They communicate using virtual networks; the networks only exist within my notebook, and are created by VMware. (Both notebook and VMs are connected to 'real' networks also.) Notebook is running Windows XP SP2, as are most of the virtual machines.

Installed Acronis True Image Home 2010 and (surprise!...) none of the virtual machines could communicate with the host.

Seems Acronis had *removed* the IRPStackSize value. (on the host machine; the notebook itself)
I put it back, rebooted, and *success* - all good again.

Thanks for posting all this!

- Al Weiner -

I changed the IRPStackSize entry several times with no success - it was not until I read your article that I realised that I was changing it on the wrong computer (the W7 machine). As soon as I changed it on the XP machine (with Acronis TrueImage installed) I could immediately access the XP machine from the W7 machine. Thankyou - I have spent hours on this problem and wish I had found your site quicker.

That was an easy fix for me, THANKS!

I do have Acronis True Image Home 2010 installed and was experiencing the subject error message on my Vista Laptop. I added the registry entry as described with a value of 20, to my XP box and rebooted it. My Vista laptop can now access the USB 1TB harddrive on the Windows XP box!

2 Thumbs Up!

After hours of trying to get my new W7 to access my XP system over my network I found this site. The W7 laptop could see my folder on the XP machine, but would fail to connect and display the "Not enough server storage is available to process this command" error message. (XP machine had no problems accessing files on the W7 machine).

I had Acronis on the XP system, but decided to try increasing the IRPStackSize parameter to 20 before uninstalling. BINGO! W7 machine can now access the XP machines files.

THANK YOU!

I tried what the article said that by removing some programs like the Acronis TrueImage will somewhat solve the problem. So, I tried to apply it to see whether such suggestion is quite effective for this special problem. And I was not disappointed because it do really effect, 100%. Tips on how to do it more effective:

♠ The Acronis program should be remove completely in the system through the Control Panel, remove and add programs;
♠ Wait for the program to prompt you on what steps to do next; and
♠ Don't forget to reboot or restart the PC if the program deleted doesn't inform you that you have to reboot the computer to effect the changes made.

After that, believe it or not, the problem is gone. And the PC clients across a network can now access the folders and drives of the Server shared in the network with no hassle at all. Thanks for the article before this.

You folks are a life saver!!

My XP machine recently crashed (8-year old mobo & CPU), so I bought a new mobo/cpu and reinstalled XP on it.

Since this was a new system, thought I would upgrade Acronis True Image home as well.

Then today, when I tried to access the shared drives -- got this error message. Have tried IRPStackSize values all the way up to 48 -- no success.

THEN, thankfully, a Google search got me this page. I removed ATI Home 2010 and -- miracle of miracles -- file sharing is back!

Yours is the ONLY link Google turned up that mentioned the ATI Home problem.

Problem was fixed as soon as Acronis was uninstalled. Tried the Lanman Server route 1st. Had No effect. Thank you! Thank you! Thank you!

I have increased the Lanman Server value on my XP "server" to decimal 48, as it is the common share for the whole house.

I have also created & increased the Lanman Workstation value on my laptop to decimal 48, in the vague hope that it's also something to do with outgoing connections as well. I figure that as long as I remain below the maximum values, it can't hurt.

I don't have any of the "known" culprits installed.

But I still haven't eliminated the error altogether. I just see it less often - about every 24 hours on average.

I had fetched the microsoft resolution method first, but it made NO difference to this problem. When I stumbled across this site a few hours later, I was amazed to find the values for IRPStackSize were a lot larger than what MS stated. My first attempt at changing this to your recommended value of 21 was successful. It's good to find people that know the software giant's programs better than the designers themselves. This site is in my favourites and will be used before ever looking at MS again. Thank you.

Thanks!!!!! I've been trouble-shoooting network access to one of my computers for months. I would never have suspected Acronis True Image as the culprit, but all my problems went away after uninstalling it. I had no IRPStackSize registry entry and putting one in didn't help at any value I tried.
Norm

It appears this occured when I had installed Acronis True Image on the computer conatining the share. I set the IRPStackSize DWORD to 20 decimal. At the time there was no value in the Parameter grooup. I added this. After a restart, my notebook can now communciate with my main desktop computer and see all the shares. Thanks fro a very compre3hensive website,

Charles

Bottom Line Up Front: Symantec EndPoint Protection (version 11+) also creates this problem. Modifying the registry as noted earlier (I used decimal 20) fixed this. THANK YOU ALL!

Background if you're interested:

I had three machines in question, all on my home LAN, all running XP Pro with SP3: a Dell laptop (A), a Dell desktop (B), and a SysteMax desktop (C). All had Acronis (and Apricorn), ZoneAlarm (free), and Norton corporate antivirus (v 9.0.0.338). All worked and communicated (file sharing) flawlessly, so Acronis did not seem to be a problem.

Then I "upgraded"...

The corporate IT weenies recommended all employees run WebRoot SpySweeper and Symantec EndPoint Protection (SEP) on their home machines. There was a corporate license for these that included home users (I telecommute frequently). I loaded them on my laptop (my work machine) (A) and the SysteMax (C). Installations went smoothly. For (B), I installed WebRoot but not SEP (I stayed with NAV).

Afterwards, B could not view files on A or C, but A and C could view files on B (A could not view C and vice versa). So if I wanted to copy a file from B to A, I had to do that from A (pull) rather than from B (push). Same story with C as with A. Given that the only difference between A, B, and C was the absence of SEP on B, it appears that is the problem. Doing the registry fix on A and C solved this and they're all living happily ever-after.

So this would seem to be not necessarily Acronis (all machines worked fine with it and NAV), but with SEP (possibly combined with Acronis).

Hope this helps someone. I did not have to un-install Acronis to make this work.

Hello!

Thanks for the information regarding fixing the problem "Not enough storage..." I have not encountered this error message until I installed the application "FLV Editor Pro." Everytime I open the program and use it, the error pops up like stairs until it reaches the bottom of the screen. At first, I changed the IRPStackSize to "20" because that is waht you quoted (If you want to solve the problem quickly, try 20.) It worked but after a day, the error pops up again and even in other applications so I tried changing IRPStackSize to "26" because I have read here that someone used the value and worked. This time, I have to create the IRPStackSize in the Parameters because its not there. I followed the instructions you made and it worked. After another day, the error starts popping out again so I changed the value to "30." I hope the error will no longer show here in my computer. I have done virus scanning and my PC has no virus. Can you offer other solution if the problem still persist?

Thank you very much and God Bless!

… I did have the "Not enough storage" error, and your web solved it perfectly. It now is clear that the Acronis program -- which I like a lot -- did trigger the problem. I am eternally grateful for your assistance; I agonized over it for several days before having the good sense to Google the problem and getting to you. I simply want to echo all of the compliments that now has been said many times by the users of your web site. …

[admin: Reposted from email with permission.]

Thanks to the last comment, I uninstalled the DiscWizard (which is from Acronis as indicated) and voila! it worked straight away (after a reboot)!

Thanks very much!

I registered so i could thank you for your excellent help. I read a number of post on the subject; many blamed anti-virus in general. I tried removing my CA Internet Security Suite, which has never given me any trouble, and this did not help. Then I tried removing Acronis 9 WD edition and the share popped right up without my having to touch the registy. One test I would recommend to zero in on this problem is, if viable, attempt to share a printer on your computer B example. If Acronis is the culprit, you will still be able to see and use shared printers, but will get the error on shared drives. Thank you again!

This error first cropped up when I added a Windows 7 notebook to my network.

I applied the fix to both of the XP devices that I usually map drives on, using decimal 20 as the value.

I then checked back on both of those devices for errors in the event viewer & found that on one of them, there were tons of errors marked source = NetBT, Event = 4321, dating back to last year! The error log suddenly stops at about the time that I made the change on that device. Didn't even have to reboot for it to take effect.

It doesn't seem to be associated with any particular installed application, except perhaps a Forex trading platform.

So far, I haven't seen the "Not enough storage is available to process this command" error again on the notebook.

Update: Bugger! It's back. Just not as often.

Generally the Norton IS-2010 is an excellent package - much better than their previous packages - this is the first (possible) blip I've had.
However, I can't say for sure the problem lies with them. I don't have Acronis True Image, but I do have Acronis Disk Director 10 recently installed.
So it could be either, or both together. If I find the time to test, I'll re-post.

My fix also required a setting of 30. (At least, 20 didn't work and 30 did.)

Very glad it's fixed!

After quite a few hours of trying to figure this out using Google and MS sources, I stumbled on this site. With all the years of experience I have, there's the constant reminder there's too much to know. Thanks for being that extra piece to the puzzle.

Adjusting the IRPStackSize >15 worked. It seems Acronis TrueImage was the culprit on my XP Pro system preventing my Windows 7 Ultimate from seeing the hard drives. Interestingly, my Windows 7 system could see my 16 GB USB flash through my KVM switch/USB Hub located on teh XP Pro system but not the hard drives on that system. Once again, Thanks.

I have been struggling with this all year on and off. Finally decided to do the research to fix it. Spent hours setting up all the machines correctly etc but still had this issue, then found your site and this ever so simple fix and bingo its working just like that. Ten minutes work. Thanks for the tip.

I registered so I could thank you (but hope I don't have to do this stuff anymore)
1) I verified I was getting the 2011 error in the system event viewer whenever we tried to connect from our new Win 7 laptop to our old XP desktop.
2) I backed up the registry just in case.
3) I used regedit (scary stuff for me) and noted we already had an IRPStackSize entry but it was set to 6, apparently by our Norton Antivirus.
3) I increased it to 15 decimal & rebooted.
ALL IS WELL - Thanks for the information and to all who responded earlier and gave me the confidence to try this suggestion.

Wow! Thank you for the great help!!! I had to add the IRPStackSize in my registry, then rebooted and tried to access my computer remotely, and did not get the "not enough server storage, blah blah" message. Since I don't visit the registry and try never to change anything in it because I'm not that brave, I wasn't too sure I was doing it correctly, but your instructions were very helpful. At first, after I created the DWORD key and changed the value to 20, I realized the Data Column showed 0x00000014(20) and your example shows 0x000000f(15). I wasn't sure if I was supposed to change the Data Column exactly like your example and really wasn't sure how to change it, so I left it as it was.

After rebooting and trying to access the files I didn't get the error message so, I'm guessing I didn't have to change the Data Column. If I should have changed it, can someone let me know? Also, if I need to change it, do I do that by right clicking on the IRPStackSize value and selecting Modify Binary Data, then changing the 14 to 0f? Or?

Also, if I should change that value for the Data Column to 0f, it will be the same as another key entry just above "autodisconnect REG_DWORD 0x000000f(15). Will that create a conflict?

Again, thanks for the help here.

THANK YOU - who knew ACRONIS was the mystery culprit? You did.

Glad I found you! I suddenly discovered I was unable to access my networked XP drives from my Vista system. Yep, TrueImage clones great (Kudos to them for that). Unfortunately it seems to really hose the registry and disallows network disc/file shares. Uninstalled on XP systems and all is well once again. Just for kicks I upped IRPStacksize to 20. That made for much faster access from Vista to the XP-drive it appears to me. But the fix for "Not Enough Server Storage" was uninstalling ACRONIS TRUE IMAGE. Thanks again - great, great, site.

Tom

I had never considered that True Image might be the culprit (even though the only new thing i installed today was True Image Doh!). I have Norton 360 and True Image 11. I had had problems with Norton 360 before and figured that was the cause. Should have know something was off when I disabled the firewall and it still didn't work. Curious thing though File Sharing worked after I uninstalled Norton 360 and still had True Image installed. It must be something to do with the combination of the two.

I was able to get File Sharing back by setting IRPStackSize to 16. The key was not in the registry, I had to add it.

My fix required a setting of 30. Don't know if this is because of my config. or not but here it is:

I'm running various virtual machines using Hyper-V

Host: Win Server 2008 R2 x64
Guest-1: XP Pro x64 - Acronis Home 2010 - IRPStackSize = 30
Guest-2: XP Pro x64 - Acronis Home 2010 - IRPStackSize = 30

Prior to applying this fix, with Acronis installed on either guest PC the networking stopped working between these 2 VM's. The interesting thing is that networking with other PC's to or from these 2 VM's on my domain worked OK. The issue was only between the 2 XP VM's. Incidentally, all PC's, VM or otherwise on my domain, have Acronis installed. The servers have the server version and the workstations all have 2010...

To confirm it was Acronis I uninstalled Acronis from the VM's and networking was restored. Reistalled Acronis on the VM's and the network stopped working but only between the 2 VM's.

Regardless, this fix worked when applied to both VM's!

THANK-YOU :)

Fix worked perfectly for XP server & Windows 7 client laptop. Had to create reg entry as it did not exist. Not sure of the root cause but I am running Acronis True Image 2010 & problem ocurred immediately after upgrade from 2009.

I almost never sign up to boards but just had to this time in order to say:

Many, many THANKS!!