Formatting my computer/installing a new OS

[Scrabuz]

Well, I wanted to format my PC this night so that I could do my shit tomorrow, however, it doesn't work.

I got a new OS on a disk by the guys who upgraded my PC and they told me how to install the OS. When it boots I am supposed to press F8 and choose to boot from the disk, however when I do so, it just boots like it does normally and nothing changes.

When I press "format" on my hard drive nothing happens and I can't open the console to enter "formatc" for some reason.

Edit: If anyone knows why the fuck Fallout 4 does not save at all I'd appreciate the help aswell, Bethesda support only tells me shit about what to do when I crash.

 

[Mage]

What BIOS are you using, and what OS are you planning to install?
To get your BIOS press windows + r, type cmd then press ok, type "wmic bios get smbiosbiosversion" (obviously without the quotations) and the 2nd line printed, post it here. Motherboard should be enough information too if you know it.

 

[Hayden]

Go into BIOS by pressing F2 or DEL and then change the boot drive from there and then you'll boot into the recovery tool for that OS.