>>15353823
>windows 10
>an upgrade
>he fell for it
win10 is SHIT
I have both windows 7 and 8.1 in the same laptop but different partition, i dont know if i can upgrade 8.1 to 10 without consequences for 7, anybody knows?
>>15353937
1. windows 10 is fucked up and is not an upgrade imho
2. if you get an iso / install media creation tool from here
https://www.microsoft.com/en-us/software-download/windows10
pick your OS u want - x64 i would assume
create your install media (usb is probably your best bet)
then when you boot to your media to do a fresh install just pick the partition that has 8.1 on it, and install it on that partition.
you might have to update BCD store after though, which isnt a big deal.
you can use this
https://www.boyans.net/
or this
http://neosmart.net/EasyBCD/
captcha: good pedro