Quick Fix: Windows 7 unable to join domain…

I was looking at a clients laptop today, brand new Toshiba running Win 7 Pro.

I attempted to join it to the domain using the traditional, system properties / computer name tab method, but i was given a message that unfortunatley i didnt note down, but basically read…

Unable to join the domain, unable to start the service, service may be disabled..

Imediatley i thought of the netlogon service, and i went to the services.msc console and tried to start the netlogon service. It failed, with the message..

Could not start service, service may be disabled…

So, i thought, this is quite bad because the DNS Suffix of the machine has changed, and i dont want to reboot because i could be stuck half way through the join leaving the machine unstable, or worse it wont boot up or let me logon, and working on this remotley would make that a real pain!

So of course i tried again a few times, i then checked UAC settings which were not at the default, but i put them back to default anyway. No change.

I then decided to try and force it back into a workgroup to get out of any potential split issues, and that did succeed,

Welcome to the TEST workgroup!

I then tried to rejoin the domain, this time Success!

Wish i could put my finger on what went wrong, but laptop is now in the domain!

About Robert Pearman
Robert Pearman is a UK based Small Business Server enthusiast. He has been working within the SMB IT Industry for what feels like forever. Robert likes Piña colada and taking walks in the rain, on occasion he also enjoys writing about Small Business Technology like Windows Server Essentials or more recently writing PowerShell Scripts. If you're in trouble, and you can find him, maybe you can ask him a question.

One Response to Quick Fix: Windows 7 unable to join domain…

  1. smcnutt says:

    I think that I was getting this error because as I was migrating a large, hmm, “just a bunch of PCs” network to a Windows domain, I encountered multiple systems that shared the same name.

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