Error code 0xC004C060 states: "This product key is no longer valid."
Why Does This Occur?
This message occurs when Microsoft activation servers flag a license key that was revoked or exceeded its concurrent network allotment. This frequently happens if you purchased a key from unauthorized gray-market marketplaces.
How WindowsKey Protects You
At WindowsKey, every license key is 100% verified. In the rare event of a server-side revocation, our 24/7 support team exchanges your key immediately or issues a full refund. Simply contact us with your order number via our Contact Form or live support.