I have a domain controller generating a lot of errors after some old accounts were cleaned up. A previous IT firm had added a bunch of accounts into GPOs, so when we cleaned out the accounts, the DCs started logging event ID 1202 errors in the Application log.
Event ID is as follows:
Text
Security policies were propagated with warning. 0x534 : No mapping between account names and security IDs was done.Advanced help for this problem is available on http://support.microsoft.com. Query for "troubleshooting 1202 events". Error 0x534 occurs when a user account in one or more Group Policy objects (GPOs) could not be resolved to a SID. This error is possibly caused by a mistyped or deleted user account referenced in either the User Rights or Restricted Groups branch of a GPO. To resolve this event, contact an administrator in the domain to...