jcboy3 wrote:
Photoshop uses a lot of memory, so do a memory check.
Beyond that, make sure you have a backup of your documents, initialize the system disk, and reinstall the operating system and applications. I would start with Photoshop and make sure it doesn't crash your system, then reinstall applications while periodically checking that none of them crash your system.
Don't even think about reinstalling your operating system unless your computer is from 1985 and you have a disk somewhere lying about. You'll wind up with a boat anchor!