I am trying to fix a Windows 8.1 laptop that has been badly infected with malware. Attempts to clean it have pretty much failed and so I've decided to reinstall Windows.
My preference would be to go straight to Windows 10. However, the How to perform a clean installation of Windows section of http://windows.microsoft.com/en-gb/windows-10/media-creation-tool-install?ocid=ms_wol_win10 says that to upgrade to Windows 10 for free, you need to use the Upgrade this PC now option.
Does this mean that I'm going to have to reinstall Windows 8/8.1 and then upgrade to Windows 10 in order to do a clean install of Windows 10? Or is it possible to go straight to Windows 10?