What free software is good for repairing computers?

[email protected]: What free software is good for repairing computers?
By this, I mean that I am a 14 year old, who is trying to make some extra money this summer repairing other peoples computers. I would like software like Hijackthis, herins boot cd, etc., but I don’t know which software is allowed for this purpose (out of the box, not payed for). Can somebody make me a list?

Answers and Views:

Answer by Arie
Hiren’s Boot CD is a very handy tool, but it is illegal to use if you do not own licenses for each individual application. HijackThis, CCleaner, Defraggler, SmitfraudFix are examples of free of charge applications which can help you solve issues.

Answer by Peter
I think that you are having delusions on how that profession works.
People who call maintenance usually have serious computer problems, or problems that you cannot fix with just random software or by clicking :”fix computer” in one of them.

Answer by hackHP
go to my website because Im 15 and I repair computers for money! getinfrarecorder to make bootable disks from iso images.