WUCrtUpd.exe
(Microsoft)
Windows Update Critical Update Notification. This will appear in your Task List if you did a Windows Update at some stage and installed the " Critical Update Notification " component. In some versions this process is scheduled to run every 5 minutes and you cannot change the schedule (under Windows 98 you can get round it with the "sucrtupd" technique, but not under other versions of Windows).
Recommendation :
Do not walk, run to your "Add/Remove Programs" icon in the Control Panel and immediately de-install Microsoft Windows Critical Updates Notification . The consequences of some Microsoft Critical Updates have been such that the last thing you need is something to remind you, and therefore entice you to update your Windows environment with the very latest bug fix (which is what critical updates really are) from Microsoft. It is not just that some of those updates have been quite simply disastrous (remember May/June 2002 ?), it is also that too often for our liking, the full consequences of installing some of those updates are not always clearly spelt out by Microsoft. Yes, some of those updates are needed from a security point of view, but in 98% of cases if you either run a good firewall or your PC is configured securely, then you are protected anyway, so do not fix what doesnt need fixing . It is best that you simply do a Windows Update once every two or three months, say, and only at times when you do not require your PC urgently in the following 24 hours ! Finally, quite aside from the above, WUCRTUPD is also sometimes responsible for illegal operations, 3-seconds mouse freezes, WULOADER error messages, and Invalid Page Faults in KERNEL32. Have we said enough ?