Right gentlemen,a progress report,dug a old 180 gig hard disk out me junk box,formatted same loaded operating sytem,motherboard/graphic card drivers ,clicked on tinternet,into microsoft downloaded SP2 stuck webcam driver disk in,it downloaded drivers and said HD webcam is working just spiffing.
So tiz obviously summat to do with the operating system on the other hard disk, got a lot of stuff on that one I do not wish to lose though.
Slightly off topic,this machine has a Sata hard disk.(the one that wont talk to microsoft) the spare (the one that will talk to microsoft) is a IDE disc,question?,I have the spare configured as Master but with both hard disks connected no matter what boot sequence I select in bios,the machine will only boot from the Sata disk,is this normal.?
Was thinking of using this disk as master and thr original Sata disk as slave in order to copy stuff across.
Anyway the webcam works fine,and is stunningly good in 1080p HD,so thanks for the help chaps.

Mr Observer I tried using IE and firefox neither would let me in to microsoft,anyway tiz sorted now thanks,
orf to download sp3 now