If those two points apply to you, it is obvious that some important system files are missing. If error code '0x800f0805' appears after applying the default product key, please make sure that you have at least 20 GB of free disc space and that Windows is updated to it's latest version. If it's not accepted, apply the default product key: 'VK7JG-NPHTM-C97JM-9MPGT-3V66T' Press the 'Windows key' + 'R', type 'slui.exe' and hit 'Enter'Ģ. Please proceed with this when you are currently using Windows 10 Home and want to upgrade to Proġ. Option 2: Upgrading from Windows 10 Home to Pro
Installation type: Custom: Install Windows only (advanced).Select your language, time, and keyboard preferences.Boot from the USB flash drive or the DVD you have created.Select the media you want to create (USB flash drive or ISO file to create a DVD).Select Edition: Windows 10 (it includes both, Pro and Home).Create installation media for another PC.Download Windows Media Creation tool directly from Microsoft: Please proceed with this when you are currently using an older Windows version than Windows 10 or a PC without an operating systemġ. Option 1: Performing a clean installation Windows 10 Pro: How to download, install and activate