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Article 2688

Invalid MachineGuid

An invalid MachineGuid registry value has been detected. Follow these steps to fix the problem:

1. Open regedit.exe
2. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography registry branch.
3. Double click the MachineGuid
4. If there are any curly brackets in the value remove them. For example:
   Wrong: {F5C2C749-D98B-4B28-B70A-1EF9526B78DE}
   Correct: F5C2C749-D98B-4B28-B70A-1EF9526B78DE
5. If the value is 00000000-0000-0000-0000-000000000000, a new random value needs to be set.
   To get a random GUID, open a command line (cmd.exe) and type:
   powershell -Command "(New-Guid).Guid"

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