Wow. It must have been a expensive repair :sad:. I remember one time when my brother (older) took my old Windows 98 (Sony VAIO) to a computer repair shop in New York to "wipe" the drive... and it was costly. In that time, it was in the 2000's.
As for a new computer, I would suggest you hold on to the current one until it "wears" out. My suggestions are:
-Use a surge protector.
-Use a anti-virus program, firewall, and at least one anti-spyware program.
- Safe hex.
-Save up the money for some other technical devices. Maybe purchasing new RAM or a new replacement cable of some sort. The choice is yours.
Why can't you install MS Word? Was there an error?
I'm assuming you're using Windows XP OS. Do you know the capacity of the hard drive that is on your computer (C:\)?
Have you defragmented lately?
These questions may seem overwhelming to you, but don't worry. Take it step by step.