Product key activation help
Check your product edition and troubleshoot common activation problems.
Make sure the product matches
Check the version, year, operating system and edition. A Windows Home key does not activate Windows Pro. Confirm the installed product before entering another key.
Keep the useful details
Write down the full activation message and error code. If you take a screenshot, hide your activation key and personal information. Have your order reference ready.
Try the official troubleshooting route
Use Microsoft’s guidance for the product. Check internet connectivity and any required sign-in. Avoid third-party activators or scripts that promise to bypass license checks.
Get in touch
Send the order reference, installed edition and exact error through our support form. Keep passwords and card details private. A defective supplied key is handled under the returns and refunds policy.