KMS Activation – Error: 0xC004C008
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...