but usually just after startup or on startup when I try to do something while programmes are still loading. It will run fine for ages then just suffer random problems. I have had some this morning, first for ages, ctrl alt del will not even bring up task manager - reset is the only option & it starts OK.
I have all critical updates installed, anti virus & spyware is up to date, everything is bang up to date. For my postings in case anyone has an answer.