Last night I installed some new RAM in my system, Windows decided to die. Because HP were kind enough to not include a recovery disk, and I was too stupid to make my own, can I buy an upgrade disk, boot into that and run the repair facility? It passes UEFI fine, all the hardware passes the hardware check, however Windows fails to boot so I believe its become corrupted. I've seen something similar at work where swapping out the video card corrupted the Windows install.
Quick answers would be really appreciated, I'm writing this on my phone from Tesco carpark. Need to know before I walk in and buy one, I've googled and can't get a straight answer.