My wife's computer will give the message " windows has encountered a critical problem and will restart in one minute. Please save your work now." Then restarts and the same thing occurs over and over again. I tried starting in safe mode to do a system restore but the earliest date I was given was last week. I was able to complete that but it didn't help. Now it only is on for about two minutes then starts doing this again repeating over and over again. Thanks for any help.