Interrupted system refresh and recycle

[Fistfulofpitbulls]

Hi! Yesterday I wanted to refresh my PC (Win 10) because it was suddenly working very slowly and lagging. So I did that. It was already 95% done when it shut down because apparently I hadn't plugged my computer in.. After that I only had an option to wipe everything, including my documents, pictures, programs, and reinstall win 8.1, which came with this computer. Everything is fine, although now when logging in I have this blue screen which asks whether I want to log in, using win 8.1 or 10.. How do I get rid of it? I want it to log in to 8.1 instantly. Win 10 is not working anymore - it tells me that it needs to be repaired and I thought I repaired it by reinstalling 8.1.

 

[Colif]

sounds like the win 10 boot loader is still there.

do you want to use 8.1 or 10? how long were you using 10 as if more than 1 month you now have a win 10 licence and can't stay on 8.1

if you want to use win 10 you can dl it from here: win 10 media creation tool. Use that to create a win 10 dvd or usb (you could just upgrade using it but its better to fresh install)
now as you deleted everything last time, just do a clean install following this: http://www.tenforums.com/tutorials/1950-windows-10-clean-install.html

AND do try to think to plug it in this time