After two weeks of every type of scan, rebuild, reinstall repair etc I still cant fix this. Desk top task bar and Icons keep disapearing. Programs can be acessed via Ctrl-Alt-Delete new task but then CPM locks at 100%. Tried an SFC scannow with an error telling me cant scan proctected system files. PC Spyware freezings when it gets to a file called windows\system\uniq.tll and then eventually PC turns itself off. Tried to find this file to delete it but its not visible to the eye. Even tried an unsucessful reformat this morning with a message saying cant perfrom this function as the "Drive door" is open.