There are lots of things you need to consider when opening computer repair
business. you need to register your company. I would suggest you to get LLC
for your business. Now it depends if you are looking for onsite computer
repair business or online pc repair business. I would suggest you to get
both. You can get good business in online pc repair business as well. Its
upto what do you want to do. But you would need to internet marketing. This
would be the best thing for you to do.

Thanks for the replies! My friends has now canvass the prices of the things he will  be needing. Anyways, Ive suggested to him to read some of the articles we have in this site. That will be very useful.. 

Hi,  There's a lot to consider when starting a busines and we have a lot of resources to get you started. Check out our "Thinking About Starting a Business" section for starters. You'll access information and tools to help weigh the pros and cons of having a business and determine if it's right for you.  You could also consider talking to a mentor, someone who has been in your shoes and can give you advice about your situation and how you can navigate this initial phase of getting your new business off the ground. 

I've no suggestion regarding this business services. but yeah if your friends wanna make do internet busniess, then they need to get enough knowledge about it, buy reading internet busniess books.