I have a 2005 Toshiba laptop with a celeron processor. For some reason my computer will just shut off without warning. You've got about 15 minutes tops to use it before it'll just turn off unexpectedly. If you're doing something a little more complicated, like running a virus scan, it'll turn off within a few minutes. I think the longest it's stayed on in about a year is half an hour. It's just been sitting on the desk for over 6 months without use because it's not even worth my time to try and use it. You can look at a few webpages, then it shuts off. Sometimes you can't even get that far. It'll load the desktop and before it even loads any programs, like an antivirus program or something else, it'll turn off. That's less than 1 minute of time right there.
I tried turning off all unnecessary startup programs like messengers, players, etc but that only bought me about a minute of extra time with it. I also deleted pretty much anything extra on it because I figure I'll lose it soon anyway so I transferred everything to another computer. I have close to zero music, pictures, videos, etc.
Any ideas what's wrong with it? I don't even know if it has a virus because I haven't been able to run a scan in ages without it shutting off first. I'm very careful about not putting myself at risk for viruses, though.
I just want to know what's wrong with it and what I can do to fix it. Keep in mind that I don't have much money to get it inspected by a professional. Even if I can't fix it myself, it'd be nice to identify the problem.