Hello there, Has anyone else having issues with BSODs after deploying MS09-058 ? We started seeing issues with (busy) 32 bit and 64bit servers around a week after reboot and when we do a full virus scan in the early hours. After analysing the dump files I pinpointed the file Ntkrnlmp.exe as being the most likely cause. Lo and behold MS have released a fix http://support.microsoft.com/kb/978243/ Ive just started testing the fix to see if it a) addresses the issue and b) creates any new issues. I hope this helps someone else in the same boat. M PS .. what patch management systems are people using ?