After upgrading ESX to ESX 5.0 Files not updating

Hi,

I have upgraded my ESX from 4.1 to 5.0. After upgrading files are not getting updated to correct version after installing of security patches on most of x64 bit edition OS. Security patches here I am referring to Microsoft released security patches for OS. After restarting the machine more than once or installing the security patch again the files gets updated.

This is not the behavior with x86 Bit editions.

Please help out in this regards.

Thanks,

Regards,

Rajat