What is the best way to completely clean

[plcdude]

your computer?

[struggle4progress]

1. Just reinstall the OS and the program you need

ESpecially if you have windows, you'll have tons and tons of junk on your computer after a few years

[TrogL]

2. Do NOT use solvents on the monitor

[hobbit709]

3. Format C: /u

[Duer 157099]

4. Be more specific about your intent

For me, I just buy a new hard drive, pull the old one out and put it in a safe secure place as a backup, and then install all your necessary stuff on the brand new drive.

[Fumesucker]

5. I've washed really dirty circuit boards in the dishwasher before..

But I suspect that was not what you were talking about.

A low level format of the hard drive, followed by a partition and then a format and then reinstall the OS and just those programs you intend to use.

That will get just about anything off your drive that might be a problem.

http://hddguru.com/software/2006.04.12-HDD-Low-Level-Format-Tool/

http://download.cnet.com/CompuApps-SwissKnife-V3/3000-2248_4-10070864.html