If you are using the Volume Shadow Copy Service (VSS) software provider on a system running Windows 7 – Service Pack 1, Windows Server 2008 R2 – Service Pack 1 or Small Business Server 2011 – Service Pack 1 then you may find the computer randomly stops responding.
This occurs because volsnap.sys tries to obtain a lock again on a file even if it is already holding a lock.
A hotfix can be requested to resolve the issue using KB 2627052 http://support.microsoft.com/kb/2627052
WatchGuard System Manager Version 11.5.1 – Update 1 was released recently to correct some XSS Flaws that were reported to WatchGuard, it also corrects two internally identified vulnerabilities. You can obtain the latest version via the WatchGuard support portal.
You may find that Login Scripts are very slow to run when you are using any of the following operating systems:
Windows Vista – SP2, Windows Server 2008 – SP2, SBS 2008 – SP2, Windows 7 – SP1, Windows Server 2008 R2 – SP1 or SBS 2011 – SP1
The boxing feature causes the login script to run at a reduced priority for the first 60 seconds, a hotfix is available from Microsoft that improves the speed at which the Login Script runs. This can be found in the Microsoft knowledgebase under KB 2581608 http://support.microsoft.com/kb/2581608
If you are running Windows 7, Windows Server 2008 R2 or SBS 2011 with Service Pack 1 then you may experience the following error:
STOP: 0x0000007F (parameter1, parameter2, parameter3, parameter4) UNEXPECTED_KERNEL_MODE_TRAP
This can occur in a number of scenarios such as initiating a data transfer over the network or resuming the computer/server from sleep/hibernate. Ultimately the issue is related to the operating system not allocating enough stack space. The issue can be resolved by applying the hotfix from the Microsoft Article KB 2519736 http://support.microsoft.com/kb/2519736