About this tag
The account mapping tag on WindowsForum.com covers issues related to the Windows error 'No mapping between account names and security identifiers (SIDs)'. This error commonly occurs after a clean Windows reinstall or when trying to join a domain, preventing successful authentication. Discussions include troubleshooting steps such as verifying DNS settings, disabling firewalls, enabling NetBIOS, and having an administrator remove the old computer object from the domain. The tag focuses on resolving account mapping failures in Windows domain environments, with examples from Windows 7 and later versions.
  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. F

    Windows 7 Can't join domain

    Hi, I previously used an XP computer on the domain wth a name like 'mylaptop'. I replaced the drive and have Windows 7 Ultimate installed and am unable to join the computer 'mylaptop' to the domain. I've done these things... 1. Ran NSLOOKUP to verify I can see the domain controller 2...
    • fredjonze
    • Thread
    • access denied computer management configuration dns domain controller domain join error message firewall ipv6 netbios network network sharing remote desktop secpol security system administration troubleshooting windows 7
    • Replies: 2
    • Forum: Windows Networking