My 3-year old Dell desktop is running Win 10 Professional 64 bit. The original hard drive finally failed and I was able to switch to a backup hard drive I'd earlier installed with Win 7 with the F12 key on boot. I then tried to replace the faulty drive by removing it and installing a new Hitachi drive in its place (original was a Seagate). However, having done so, the drive/computer beeps at regular internals and the new drive appears to be searching....
I suspect it may be necessary to erase the old Seagate from the operating system before installing a new drive in its slot....
But I am not an expert and I would appreciate any tips that can be offered....
ChetR