You can rescue files via Knoppix http://www.knoppix.com/ (a Linux OS that runs direct from directly from CD/DVD), as suggested above. There are others, and even more specialised, such as SystemRescue http://www.sysresccd.org/Main_Page
Locate your files and save them to USB keys; as it may takes several USB keys to do the job. Once all files and folders have been saved, wipe your hard-drive and re-install your previous OS. Make sure you have a firewall that is strong and flexible/customisable, then install a potent Anti-Virus program. NOD32 as said before (VB knows), is excellent, and so is Kaspersky. The best of the free AV programs is probably AVG. But that is slightly resource-heavy, even if it is very effective.
Next, update the Anti-Virus software, so that BEFORE you re-install your old files and folders, your PC is absolutely up-to-date in its protection. Some other good security software I have installed (and I don't get more than one issue per day on my laptop) are - CCleaner (a good Registry cleaner, but always use the "back-up" option first), Spybot: Search and Destroy (a bit slow, but very effective), and Ad-Aware SE/2008 (a stand-alone, run-when-you-like AV program; always keep updated).
Sorry if you already knew all this. Then you can re-install the old files and folders, and immediatly run your Anti-Virus software. After that, you should be ok. Its hours of work. And still, it can all go Pete Tong. Hope it works out though.
You can rescue files via Knoppix http://www.knoppix.com/ (a Linux OS that runs direct from directly from CD/DVD), as suggested above. There are others, and even more specialised, such as SystemRescue http://www.sysresccd.org/Main_Page
Locate your files and save them to USB keys; as it may takes several USB keys to do the job. Once all files and folders have been saved, wipe your hard-drive and re-install your previous OS. Make sure you have a firewall that is strong and flexible/customisable, then install a potent Anti-Virus program. NOD32 as said before (VB knows), is excellent, and so is Kaspersky. The best of the free AV programs is probably AVG. But that is slightly resource-heavy, even if it is very effective.
Next, update the Anti-Virus software, so that BEFORE you re-install your old files and folders, your PC is absolutely up-to-date in its protection. Some other good security software I have installed (and I don't get more than one issue per day on my laptop) are - CCleaner (a good Registry cleaner, but always use the "back-up" option first), Spybot: Search and Destroy (a bit slow, but very effective), and Ad-Aware SE/2008 (a stand-alone, run-when-you-like AV program; always keep updated).
Sorry if you already knew all this. Then you can re-install the old files and folders, and immediatly run your Anti-Virus software. After that, you should be ok. Its hours of work. And still, it can all go Pete Tong. Hope it works out though.