![]() It should say that Windows 10 is activated. Wait for a few seconds and the check System Properties window in Control Panel\System and Security\System. To activate Windows after changing the key, you need to run the following command: slmgr.vbs -ato. ![]() ![]() Replace "111" with your actual product key. Type the following command to install a new product key and press Enter: slmgr.vbs -ipk 11111-11111-11111-11111-11111.See: How to open elevated command prompt in Windows 10. Note: This trick also works in Windows 8.1, Windows 8, Windows 7 and Windows Vista. You don't need any third party tools or complex Registry tweaks. I did purchase a professional license but when i try to upgrade the windows i get the following error message 0xc004f050. suppose you have installed Windows 10 initially with a generic key, and then wish to change it to an authentic key that you purchased, this can be done quickly without reinstalling. Needs answer Windows 10 Hello, I dont know if anyone has been able to upgrade windows 10 home to pro. If you need to change the product key of the installed OS, for example. RECOMMENDED: Click here to fix Windows issues and optimize system performance
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