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  1. robertolombardi

    Error: No Mapping Between Account Names and Security Identifiers After Windows Reinstall

    Hi all, I'm adding my desktop pc after a clean reinstall of windows. The only problem is that I get this error message, where it tells me that there is no mapping between the account names and security identifiers (SIDs). Does anyone know how to help me? It's the first time I've seen this...
  2. V

    Domain admin account lockouts from domain pcs

    Hello, we are facing an issue where the domain admin accounts are becoming locked randomly. We have filtered out the event 4740 in the windows security log and we can see the PCs triggering this lockdown. ------------------------------------- A user account was locked out. Subject: Security ID...
    • v0id
    • Thread
    • antivirus contoso domain admin domain issues event 4740 kerberos malware scan network analysis network security rdp sessions security id smb protocol system admin system formatting troubleshooting user management windows log windows security
    • Replies: 1
    • Forum: Windows Server Forums
  3. V

    Windows 7 Replacing invalid security id with default security id...

    Hi forum, I hope you're having a good day. Please help me with this situation of mine. Summary: The system requires chkdsk for the 2 mechanical hard drives in RAID-1. The disk check has returned lots of "Replacing invalid security id with default security id for file" ... Why is this...
    • vinhcit
    • Thread
    • backup chkdsk corruption corsair data recovery drive properties environmental variables firmware update intel raid mechanical drives permissions raid recycle bin sata mode security id ssd system variables troubleshooting user variables windows 7
    • Replies: 4
    • Forum: Windows Help and Support
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