My trouble started a few days ago when Google Desktop Search updated itself. The next time I re-booted windows hung part way through loading and then I got a message box stating "....windows will shut down in 60 secs, please save any work in progress etc.This shutdown authorised by NT AUTHORITY\SYSTEM" and below that"Remote Procedure Call(RPC) service terminated unexpectedly" The RPC is set to start automatically in Services. After restoring a Disk Image to get back to where I was, I tried uninstalling altogether. Almost the same result on Re-boot. Same when trying to manually install latest version as told I must uninstall old version and reboot before installing new version, hence caught in trap referred to before.Have also uninstalled manually from the Registry. All tried many times, have had to restore a disk image about a dozen times so far. Any ideas welcomed, especially from anybody who experienced similar. OS is XP & SP2 fully up to date.