does anyone know any good paint programs?

PaintToolSAI is really good if tu want an art program, but it takes a while to learn how to use it.

MS Paint Is A Classic Program Which Normally Comes With The Computer Hardrive.
Paint Is An Upgraded Version Of MS Paint Which Also Normally Comes With The Hardrive though tu never get the two on the same computer (Long story short, tu get one o the other. I Have many Computers since my parents are división, split up and so Some (Majority) Of Them Have MS Paint While The Rest Have Plain Old Paint.
Hope That Helped ^^

FireAlpaca: it is a pretty much a complicated
Sumopaint.com: open this page and use this really simple program
Gimp: it is a realistic type of program...

I'm starting to use Paint Tool SAI but tu could use other programs like Gimp (it's más similar to Photoshop) o Paint.Net to start off a little más simple. Creating art on programs improve greatly if tu have a tablet.
If tu don't want a virus I'd go with MS Paint o even draw traditionally.

Well I can give tu absolutely clean enlaces to PaintTool SAI.

And if your PC is blue screening, I must ask, do tu have an Anti-Virus software?