Two D drives is a neat trick?
I'd recommend a new hdd and get your hands on a W8 (thats 8 not 8.1) iso:
replace the old hdd and install W8... the msdn key will kick in automatic without asking you and then the HP website can give the chipset drivers.
The plus side:
is a fresh install and the old drive can still be your backups that you grab whatever you need of it once you are back up
so we arn't cloning over an error over onto a new drive.
The minus:
$ of a new hdd but they arn't that much... w8 iso can be hard to find now that WX has come out, Microsoft doesn't allow the download but you already have your key so you just need the iso so a computer shop* or tech school should be able to put this onto a (gtp not...