Windows 10 Did i install it clean?

[Mark Imiela]

So i did the download for Windows 10, and at the point where it asks what files i want to keep i selected none. Was this the clean install instead of just the upgrade? Because i want the best performance and clean offers that. If it wasn't, how do i do a fresh install or whatever it's called? Like a format, or restore for windows 10.

 

[kemical]

Technically to perform a proper clean install one needs to change the boot order in the bios so that the media that holds the Windows 10 os either Disk or USB can be booted from. You can download the Windows 10 iso file (needed to burn the os to disk or usb) from here:
Windows 10