Thanks for the replies.
The disc has only ever been used three times but it was cleaned before I started as was the DVD drive.
I originally put Windows on top of itself as I've done in the past as recommended in the user manual that came with the PC.
This is as far as the installation will go (this image is off the net....mine sticks at 32 mins)............
Even though the the programme freezes the green dots at the bottom right still continue to flash.
Is there any way to get rid of the partly installed programme such as at the black Windows Setup screen when the PC is first switced on ?
Or will I be having to look for a new hard drive ?
I've never really had any problems before so all this jiggery pokery's all new to me !!