0xC004C003: The activation server determined that the specified product key has been blocked.
0xC004E002: The Software Licensing Service reported that the license store contains inconsistent data.
This issue occurs because the incorrect permissions are set on the Tokens.dat file or this file is corrupted.
To resolve this issue, two methods are available and to be tried in order;
Method 1: Set the correct permissions to the Tokens.dat file
Method 2: Rename the Tokens.dat file
Visit Microsoft KB978305, for detailed steps on the methods.