Hey , I was just wondering if installing windows 10 in a clean install will wipe all my data , I know it will format local disk c (on which windows is installed ) but what about other drives ? Thanks in advance
Before doing it to both, I would install Windows 10 on one of them, not your primary PC, and wait a couple of days before installing it on the other. Just in case there is a weird issue.
A clean install will wipe your data on the drive you select. If you have a secondary drive, it will not be affected. Make sure you know which drive you want before installing.
It's the same to boot from the ISO as if you were booting from windows Vista, 7, or 8 disk. you can upgrade your existing installation install new, create new partitions, repair etc..
If this is not something you have done before, I wouldn't recommend doing it on a primary machine with Windows 10.