How to find a corrupt file

Pat 07

Honorable
Sep 23, 2013
2
0
10,510
I have a gateway table computer woke up yesterday and everything was gone.
Got everything installed Avast Came up and said there was a threat they fixed GatewayBiz.com
When I turn My computer off then later turn back on everything is gone .I have run Malicous software removal tool,Spybot Search & destroy and a few others.My computer is still losing all when shut down.There is a little sign that is coming on the screen now saying there is a corrupted file.What do you suggest?