My computer is very out of date and only has Windows 98 on it. I only use it for school but need to download some kind of Virus protection. I know nothing about them and could use some help.

There’s two type of program I wanna ask (both shares the same problem):

1.
Installer setup, especially antivirus setup can’t be installed. It ran but then it closed unexpectedly.

2.
So do TuneUp Registry Cleaner and Shortcut Cleaner. It even MYSTERIOUSLY disappear.

For no. 2 I have to manually rename the file so that it quite solve the problem. But, for no. 1 it won’t work even though I rename it.

Is this caused by some kind of virus or malware? If so, how to get rid of this sh1tty thing from my computer, aside from installing antivirus software since I’m afraid the problem would happen again.

Any solution? Please help me.