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The User Profile Service failed the logon

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by , 13th February 2014 at 02:59 PM (7934 Views)
If you've worked with Windows 7 for any length of time, you're sure to have come across this error sooner or later. Most of the time it's relatively easy fix involving the registry, which you can find here (this works for Vista, windows 7 and 8:

User Profile Service failed the sign-in - Fix in Windows 8

However this one laptop was not playing ball. I'd ran through all of the above steps, and nothing, no new accounts could be created, the guest account wasn't working and I was in a state of confusion. After reaching the third page of Google, I found an unlikely solution here:

Windows 7: "The User Profile Service failed the logon. User profile cannot be loaded

THe problem was, Windows Live wasn't installed on this laptop, but I thought the idea was sound, so I tried this:

Browse to C:\Users\Default (ensure you can see hidden files and folders)

Right click AppData

Choose Security


Change permissions

Edit Everyone and give them Full Control

Click Okay

Then click on the tick box next to Replace all child permissions with inheritable permissions from this object

Click Apply then Yes to the Security warning

Amazingly, this solved the issue, so my assumption is that if a file in the Default User profile has it's permissions screwed up, new accounts can't be created. Since every other solution was either to go back to a system restore point or rebuild the machine, I thought it worth blogging on here as it might save someone a lot of time and effort!



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