This is what the other guys are charging:
virus removal and anti-virus software installation - $299
one time backup - $199
software install - $149 for one application
That's over $100 an hour! Some places charge more.
My tech support service is $65/hour, I charge in 20 minute increments (pro-rate the hour) and I will show you how to Do-It-Yourself. Here's my pricing:
Memory installs - approx. $35 (you buy the memory and I will tell you what to get)
Install 3 security products and configuration to protect your computer - approx. $65
Configure a free online backup service - approx. $45