Something tells me that your current OS setup is pretty hosed. Take the advice you've been given already: back up important files to an external device, then format the hard drive and reinstall the operating system. Hopefully that should fix things. If you still get a BSOD (which is usually a hardware problem these days anyway) or other memory-related problems with Explorer, you most likely have corrupted memory, in which case you can buy and install new memory (it's relatively cheap).
Good luck.
Now it the hardware problem because the pc is totally dead...
Now the problem is wrost... Because my pc cannot boot now...
And I been hearing strange noise in my pc...
But the good news is I backup some of the files to the Internet...
Now the only way is to repair and replace or buy a new pc altogether...
I'm typing this in a phone... Just to get you informed...
I really got bad luck but then again the pc is getting old...
So all project is dead until further notice...
I don't know if the hard drive is recoverable because it contain a ton of irreplaceable files...
R.I.P.
Jomarcenter Pc