Hey all! I recently built my first computer but did not have a Windows 10 key at the time, so I opted to use the un-activated version for the time being. Recently, my cousin who works at Microsoft was able to get me a copy. However, when I go to activate the key in settings, 2 errors show up: 0x803F7001 at the top of the "Activation" tab underneath the information about the current Windows copy, and 0x80070422 after I type the key in the "Change product key" setting. Pictures attached. Thanks!