I have had this pc just over 2 years running windows 7 with no problems. Build 7601 Service pack 1.
Then the pc began to crash repeatedly. I then cleaned the cpu fan. It was filthy.
The machine then ran without issues until yesterday. The day after a new windows update on the 19th June.
It crashed several times. So I cleaned the main power fan. It then ran without issues for 24 hours.
Yesterday the pc crashed and I got a dark blue screen.
I can only run in safe mode.
I will add the dump files when I buy ZIP....