KB ID 0000637 

Problem

KMS had been running fine for months, when we started seeing the following errors.

When attempting to activate via slmgr

Error: 0xC004C008 The activation server determined that the specified product key could not be used.

When attempting to activate via Computer Properties.

Code: 0xC004C008

Description: The activation server determined that the specified product key could not be used.

Solution

You need to make a request to Microsoft to have your Windows activations either reset, or raised.

Send and email to kmsadd@microsoft.com

Give them the following information.

1. Company name.
2. Agreement number.
3. Type of Licence program e.g. Open Value Subscription etc.
4. Name
5. Phone number.
6. Email.
7. Number of product activations required.
8. Required date.
9. Product Key: This will be the KMS key in use on your KMS Server.

Related Articles, References, Credits, or External Links

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