every time I Syncronize my system clock a user named 'BLESSED$" changes it in a few hours. How do I stop this ?1 person needs an answerI do too

Well, who is that user? Who else has access to the computer? If this is a standalone computer and you are the only person who uses it, your machine has been compromised. Back up your data and do a clean install of Windows. Review your security procedures/habits so this doesn't happen again. If this is a corporate machine, contact your IT Dept. immediately.If you can't do the work yourself (and there is no shame in admitting this isn't your cup of tea), take the machine to a professional computer repair shop (not your local equivalent of BigComputerStore/GeekSquad). If possible, have all your data backed up before you take the machine into a shop.MS-MVP - Elephant Boy Computers - Don't Panic!