

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 Remove all partitions and create a new one to install Windows.

