Hi
I have the same issue. Recently some of my clients receive this error and number of them is increasing:
When I check Services, I find that Description of Print Spooler service has been changed:
Clients alos lose their printers and I have to add them again.
I ran Autoruns but couldn't find any suspicious process. the only processes tha are not verified are:
TomcatStartup ProxyStop3 (Not verified) Hewlett-Packard c:\program files\hewlett-packard\toolbox2.0\hpbpsttp.exe
ISUSScheduler InstallShield Update Service Scheduler (Not verified) Macrovision Corporation c:\program files\common files\installshield\updateservice\issch.exe
ISUSPM Startup InstallShield Update Service Update Manager (Not verified) Macrovision Corporation c:\program files\common files\installshield\updateservice\isuspm.exe