How to remove a “No mapping between account names and security IDs was done” error

– Run FIND /I “Cannot find”  %SYSTEMROOT%\Security\Logs\winlogon.log
– Run RSOP.msc to verify the result above
– Edit Gpttmpl.inf from this location:
C:\WINDOWS\SYSVOL\sysvol\partnertechusa.local\Policies\{CCA9638D-415E-4C7E-86B6-F4EE3E195303}\Machine\Microsoft\Windows NT\SecEdit\Gpttmpl.inf
– Delete the SSID entry that was orphanated / mismapped
– Recompile RSOP from MMC (run as Admin)
– Delete entries from %SYSTEMROOT%\Security\Logs\winlogon.log that references the old accounts

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