I have a Dell XPS pc running WIndows 7 (64 bit operating system). My problems began last week when the computer would not shut down properly. I had to do a hard shutdown. Since then, the computer would initially start normally, but within 5 minutes, I would get things to the effect of (e.g.) Firefox not responding, and things would hang. I could not do a normal shutdown, but rather I would have to hold down the power button to shut off the computer. At first, I was able to do a system restore to an earlier point, but the last time I tried to use a particular restore point, this failed.
When I last had the computer on, something is beginning to hide all of my programs and files. The computer will not open any application. For the icons that are still visible, I get the message "The item you selected is unavailable. It might have been moved, renamed or removed. Do you want to remove it from the list?" (this example occurred with microsoft excel and mixcraft 5, as examples). When I'm in safe mode, the files are all there.
I ran malwarebytes twice in safe mode but it was unable to find anything.
The only way I can run my computer at all now is by going into safe mode. I'm at my wits end. Please help!