Learn how to use SLMGR or Software Licensing Management Tool to Install, Uninstall, Activate, View, Extend Windows License.

Fix Error 0xC004C003, 0xC004C003, The activation server determined the specified product key is blocked, on Windows 11/10, by following this guide.

Easy guide to force activation of Windows 10 via command prompt.

Along with a bevvy of functionality and features, the latest Windows Insider build, 10565, now allows you to perform a clean install by utilizing a valid key from Windows 7, 8 or 8.1.