>>541631753
>>541632964
>>541633716
I'm not gonna lie, I don't know if you're extremely tech illiterate or if you're trying to troll us.
Bro, literally download rufus and the Mint ISO, then use rufus to properly format a pen drive and copy Mint onto it, then boot into that pen drive and install Mint. There are plenty of video tutorials on how to install Mint or pretty much any OS out there.
There's no such thing as "OS transfer". If you're afraid some of your data on any drive might be lost, backup it to an external drive.