i’ve had my latptop for about a year, and there’s a few minor annoying problems with it, when i hit shift key sometimes everything cap locks, recently, i keep getting a blue screen that says i must shut down, supposedly a ‘serious error;’ and my computer might have viruses, adware, spyware, etc; i’m thinking easiest way is to buy a protable hard drive, transfer all data there, and wipe out my laptop(how do this?), and then transfer files from protable drive back to laptop; however, if i have installed software such as photoshop, will this be erased also? any other ways to clean up computer?