My computer will not boot? please help ASAP?

[Konder]

I tried up update my anti virus, which in return corrupted all of my drivers for mouse keyboard and back up hard drive. So I put in the only disc that came with the computer and was going to reinstall them, but it was a recovery disc. While it was doing whatever I noticed it said backing up files. When I got into the computer ....everything was gone.... So my question is... Is there any way possible to get any information back? At the moment there's something wrong that it won't even let my USB wireless internet to connect, so I can't download anything. You always hear that even though something is deleted it can still be found....is that the case here too? Any help is appreciated. Thanks! unlock iphone 3g