http://alan.lamielle.net/2009/09/03/windows-7-nonpaged-pool-srv-error-2017 After checking the Event Viewer System log, I found the following error: Source: srv Event ID: 2017 Level: Error The server was unable to allocate from the system nonpaged pool because the server reached the configured limit for nonpaged pool allocations. Some research led me to find this Google Groups discussion about the problem and this Microsoft Technet article discussing the solution (look at the bottom of the page). Apparently you need to tell Windows that you want to use the machine as a file server and that it should allocate resources accordingly. 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 After making these changes and restarting, I haven’t seen this issue arise again. Fixed! Restarting the ‘server’ service (and dependencies) is enough, restarting the whole system isn’t required.