Why does my comp turn off when I download something

Make sure to scan your computer for viruses. Sometimes, while trying to download something.. A virus can be messing with your settings to turn off anytrhing you download. (Even new virus scanner)
If you can't, then download Avast or AVG or something to a flash drive. Then download it to your computer.
Also your computer can be using up to much memory, so it overloads.


Check those things.