Hey what's up guys, currently I have Windows 8.1 that my friend put into my comp when he sold it to me. It's currently going to expire and I purchased a new windows 8.1 key. I tried using this key onto my computer to renew it per say but it says they're different versions. Long story short, is it possible to delete the windows 8.1 on my SSD and re download it onto it without deleting or having to back up my 1 TB data? I'd rather not have to download everything again... Thank you very much!