Quote Originally Posted by Kari View Post
If keeping your installed software and personal data is important. just double click the ISO file when you have downloaded it to mount it as a virtual DVD drive, then run Setup.exe from it to start an in-place upgrade. All your stuff will be kept.

In-place upgrade moves old Windows installation files to a folder called C:\Windows.old. Delete it after the upgrade: Delete Windows.old Folder in Windows 10 Windows 10 Installation Upgrade Tutorials

To perform a clean install, ISO file needs to be burned to a DVD or USB flash drive and computer booted from it.

Okay thanks a lot, I'll try this tonight