Newbie quiz: Any idea how to completely remove Windows 10?

[Shane]

I don't to leave any traces, because i think it is infected by some malware or virus of some sort. An ideas or procedure that will help me clean it up completely?

[aalfonso]

After reinstalling windows 10, delete windows.old in your drive c.

[AlexP]

Go to the control panel and select security then install the windows 7 then try and repair disk..then you will see a popup instructions.. just follow them