Summary
Performance Center server cannot be added to the Lab Management
Error
When adding a Performance Center server to Lab Management, the "Change Machine Identity failed" error occurs.
Cause
When this error occurs, the IIS configuration is trying to access registry keys that no longer exist.
From the PC server log we can see the following error message:
"Illegal operation attempted on a registry key that has been marked for deletion"
Fix
Reset the IIS. If the problem persists, restart the Performance Center server machine.
Also check that the PC User password is still valid