The problem then arose after I'd used advanced uninstaller pro to clean out problems with my registry after using spybot to rid myself o spyware. I found out that the computer was doing odd things like being slow at times, ashampoo was taking years to save a registry before installation and now the internet sometimes just freezes with no upload or download along with not being able to reconnect to the internet(I have to restart). I opened up device manager and can see a yellow exclamation next to PnP Bios Extension, inside System devices and once accessed see the following :
Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)
Click Troubleshoot to start the troubleshooter for this device.
I have scanned with Norton, Online Trend Micro and can't find any virus,worm or Trojan. There is to the best of my knowledge no spyware on my computer. I thought it may be the Blaster Worm but it wasn't. My computer is a lot slower now and I'm completely stumped as what to do next other than a reformatt and start again.
Would reinstalling Windows so it can write back to the registry again solve the problem of accidental registry deletion(which I think it may be)?