So my Toshiba satellite C655D didn't work when i got it from m sister. It is not new she got it in 2012. So we found out that the battery was one of the problems, so we got a new charger and battery from amazon exactly the same as the original one you get with the laptop.So i turned it on, everything worked fine for about 20 minutes, and then bam, it shuts off by itself without warning. By the way i was downloading Windows 10 on it when this happend. Ever since that happend it turns on i click ENTER on it and everything is fine and then it says Downloading Windows Files and it shuts off without warning again. It does this every time i try to get on it now it does that. Please help i don't want to buy a laptop right now.