MonitorWare Knowledge Base

I was helping my friend's computer. His Windows XP home had been activated last year and everything's fine.

Yesterday when he turned it on, clicked his user name to log in, it shows "... You have to activate Windows...." press next, then shows" your Windows has been activated, ...press OK to exit" . After pressing OK, back to login status. can't get into Windows.

I found i could log in in SAFE MODE( But safe mode with networking doesn't work) , checked Event Log. Before this happened, there were Event ID 6009/6005.

Anyone got any idea? Thanks.