Then the network card failed and I had to send it back to HP in Wales. The replaced it, possibly put in a new motherboard ( I think) and all was well again.
recently I bought a new larger hard drive, and asked my nephew (who works in the shop where I bought it) to install it. It wont reboot and he got this message:
The PC recovery disks do not support this PC Model.
He took the hard disk back and indeed it was faulty. So tonight he arrived armed with TWO new hard disks! But we get the same message again.
What can have happened? When HP did the repair could they have changed something...???