try unlocker.. its for lazy people like you and me... http://www.filecroco.com/download-unlocker/download
you can delete anything with that but be carefull
well... then most likely you have a dead mobo, I rly doubt its anything else, I've had a computer with lga 775 before and I changed 4 motherboards in 6-7 years. soo.. yeah..
btw.. I just saw that you have an integrated gpu.. just connect the vga and probably that should do it
Chipset
• Intel® G41 Chipset
- Supports FSB 800/1066/1333 MHz.
- Integrated Intel Graphics Media Accelerator (Intel® GMA X4500)
- Supports Microsoft® DirectX 10
ohh wow.. lga 775 I bet the motherboard is dead it wouldn't be a surprise, I guess its not new right? I would check the caps on the mobo.. that's the most common thing on these motherboards, if they have a bulge on them or something else its probably that
download it from microsoft, or anywhere you find it rly.. its just an iso image, just don't go on some sketchy site, google is you friend you know.. search for win10 download and you'll see the first find is from microsoft
If you're switching just the hard drive you wont need anything, win10 is activated by your hardware, I mean.. it's unlocked with the serial number of the motherboard or something like that.. so you can just install new win10 and it will automatically activate