Mailbag 23/09/2010 – Windows 7 Server Mode

The main problem I have been hearing this week is people using windows 7 as a file server or people trying to access their windows 7 machine in some way from a Windows XP machine. This is fine if the windows 7 pc gets regularly restarted, the reason for this, not fully known to me, is that windows 7 has an issue with memory allocation to system non-paged pool.

You may be getting this error log issued to your event logs:

Source: srv
Event ID: 2017
Level: Error
Description: The server was unable to allocate from the system nonpaged pool because the server reached the configured limit for nonpaged pool allocations.

The fix is just a simple registry change below:

Set the following registry key to ‘1′:
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache

and set the following registry key to ‘3′:
HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size

This should definitely sort out the problem, if not please let me know.

I found a fix many months ago unfortunately I am unsure where I got it from, so I am not able to give recognition to the correct person.

Written by

Matthew Glover
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2 thoughts on “Mailbag 23/09/2010 – Windows 7 Server Mode

  1. Hey Matthew,

    My situation is exactly as described by you.
    I have a Windows7 server with 8 terabyte disk-system and a 1Gb network with some 3 WDTV live boxes connected.

    Randomly the WDTV came up with the message “This network share cannot be accessed.’ Only restarting the server got me out of this trouble.

    Just wanted to let you know that your fix solved all these troubles!
    Thanks a lot!

    Raymond

  2. Hi,

    I had same issue as Raymond and also noticed the error in the event log.

    After reading page after page of well meant, albeit useless, tips on various WDTV forums, I found your page.

    Added the two registry values, rebooted and ta-daa!

    Thanks!

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