Windows Activation Error 0xC004F015 occurs if you are using a Customer Support Volume Licence Key (CSLVK). Here's how to solve the issue.

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

Ready to leave Windows 10 behind? We break down the easiest ways to download, install, and upgrade to Windows 11 for free.

Why do this? Lol Partly because of people like me that would buy $5 windows 7 keys on key reseller sites and use them to activate windows 10/11 on new PCs.

Discover why Windows 7/8 product keys can no longer activate Windows 10/11. Learn how to upgrade or find alternatives for continued support.

Want to reuse your existing Windows license key with a new PC? We explain how to determine if that’s possible.