1. Joined : Oct 2016
    Posts : 4
    Windows 10 Build 1607
       24 Oct 2016 #1

    Corrupt NTUSER.DAT file in Default Folder


    After reading the 7Forums link I cannot find a similar instruction set w/in Win 10; yet I know that this forum is far better than the 'like' Microsoft forum since people responding on the MS Forum seem incapable of actually answering the question and provide real-life solutions.

    Bottom line: I'm suffering from the dreaded "The User Profile Service failed the logon" message.

    The error occurs only during the creation/log on attempt for a new profile. Current admin and standard profiles continue to work (though more about this later.)

    Well, the real culprit appears to be the C:\Users\Default\NTUSER.DAT file was somehow corrupted. Several steps have been taken to try corrective action, and they work somewhat. The new profile, when logged on after re-creating the Default folder, still can't launch (and keep launched) the System Settings.

    I have the most current version of the Win 10 Pro x64 .ISO file. Yet, can't seem to find/figure out how to get the core Default folder back from there. Of course, not sure I'm on the right track either.

    REAL QUESTION:
    Any one have any idea how to get my system capable of creating a new local profile without triggering a system error that prevents if from being used?


    A LITTLE MORE BACKGROUD:
    I went through the process to create a new profile, selecting no MS Account, and choosing to make it local. When the profile was created, the system somehow got confused. I did this from my Admin Profile. Since my profile was physical name was the same as a Hotmail account I have, it suddenly figured I should be using that account for my local system admin too. I didn't ask it to, did not expect it to, and sure as heck didn't want it to.

    Somewhere in the "smarter than me" mode of Windows 10, it decided all the pieces weren't aligned properly, and not only linked my admin account to my email account, it corrupted the NTUSER.DAT file in the Default folder.

    I've done this before w/o any issue (I've several family members which use my PC.) I'm a fairly knowledgeable individual when it comes to PCs (I'd say moderate level.)

    And the initial trigger for all of this was somehow the Start Menu became stupid. Try to move an icon from a location I'd deleted a previous link from, and suddenly the icon I moved disappeared as the entire Start Menu greyed out (though it did let me launch apps.)

    My system is running Windows 10 Pro Build 1607 (updated last week.)

    Any ideas, suggestions, guidance or help is more than appreciated!

    Jim
      My System SpecsSystem Spec


  2. Joined : Aug 2015
    Spring Valley
    Posts : 558
    Windows 10 Pro/Windows 7 Ultimate
       24 Oct 2016 #2

    Is WIndows loading a "Temporary Profile?
    Even if this is not happening, the Fix for that issue may fix yours.

    You've been signed in with a temporary profile - Fix - Windows 10 Forums

    This fix entails simply creating a new user, then moving your entire user folder sans the NTUSER.DAT files to the new location. I've had to do this twice with Windows 8, and once with 7. This problem has been around since Vista.

    This might work for your problem, which appears similar. You can't log in or a Temp Profile is created and you are shunted to that profile. It all depends on if you can log in to your Administrator account, this has to be done all from there and in Safe mode.
      My System SpecsSystem Spec


  3. Joined : Oct 2016
    Posts : 4
    Windows 10 Build 1607
       24 Oct 2016 #3

    Thank you!

    It does look promising, though there is one question behind the potential workaround.

    When a new profile is created, the actual folder (e.g. C:\Users\<NewProfName>) is not created until the initial log on is made with that profile. The error being issued by the Profile Service occurs before what ever steps take place to create the profile, build it with the shell components, and open the initial desktop.

    Reading through it though, there was a nugget of information. Specifically the location of Service Profile models (C:\WINDOWS\ServiceProfiles\LocalService\). As of yet, I've not been able to attempt a use of this as a core model for Default, though I am hopeful.

    Any further guidance is greatly appreciated!
      My System SpecsSystem Spec


  4. Joined : Aug 2015
    Spring Valley
    Posts : 558
    Windows 10 Pro/Windows 7 Ultimate
       24 Oct 2016 #4

    Try going into Safe Mode, log in as Admin, and see if you can make the Admin account visible from there. Then you might be able to log in to THAT profile and create the new account.

    I see what the issue is, you can't log IN at all. You might want to keep trying and see if it eventually creates a Temp Account, I don't know if that will happen. It's what *should* have happened, but it's not doing it in your case.

    If you have an install medium, you could try booting to that, and then use some of the recovery options, system restore, etc. If you don't have one, they are easy to find online to download, I don't think you need the exact version to get the to the recovery options. The medium I have includes both Home and Pro versions, it's what I downloaded through the Windows 7 GWX app.
      My System SpecsSystem Spec


  5. Joined : Jun 2015
    UK
    Posts : 1,140
    Windows 10 Home x64 (Laptop), Windows 10 Pro x64 (Desktop)
       25 Oct 2016 #5

    I had a problem in Windows 8 where I couldn't create a new user account due to a corrupted default user profile. I copied across ntuser.dat from another working account I had and I was able to access my account and create new accounts which were previously prevented. You might need to do a repair install if this doesn't work. I think MS needs a Troubleshooter toll to sort out account problems like this.

    TIP - create a backup admin account on your PC which you don't normally use. If your main admin account goes haywire then you will have another hopefully working account to use.
      My System SpecsSystem Spec


  6. Joined : Oct 2016
    Posts : 4
    Windows 10 Build 1607
       25 Oct 2016 #6

    Steve C said: View Post
    I had a problem in Windows 8 where I couldn't create a new user account due to a corrupted default user profile. I copied across ntuser.dat from another working account I had and I was able to access my account and create new accounts which were previously prevented. You might need to do a repair install if this doesn't work.
    I had hoped to avoid a repair update from my Win 10 Pro image as that has not always identified, then solved the issues (in my past that is). Yet, it is looking like the best approach - haven't tried it yet.

    Windows is really finicky when it comes to their profiles. A lot of hidden stuff which links a lot of different keys and stuff. I think this is why the copy/paste of the NTUSER.DAT file may work. After placing it in the C:\Users\Default folder, the profile stuff comes along and links the HKLU information to the NTUSER.DAT file in the newly created profile.

    What I ran up against when I tried this before, is that the System Settings wouldn't work on the new profile. Specifically, when I selected it, the Settings panel would display for a few seconds then simply vanish. Process Explorer didn't show it active, nor any other component needed. The Control Panel worked, though for UAC it would not allow me to create a new profile.

    The key here is that I'm hoping a copy of the folder tree from C:\WINDOWS\ServiceProfiles\LocalService\ to a new Default folder, followed by a copy of the Administrator's NTUSER.DAT file will set things correct, or perhaps a copy of the folder tree from C:\Users\Default.old followed by a copy of NTUSER.DAT from the Administrator's profile will be a successful combination. Otherwise, I'll have to return my system to the state it was in right after all this mess started.

    My last resort though, is a complete restore of the OS drive (which I have). It is in a state that had now profile hiccups. Yet, would hate to go through the several hours it would take. - - - - Hmm, a new thought. Perhaps I can copy the NTUSER.DAT file or at least the C:\Users\Default from my on-line version of backup... Wow, it really does help to 'voice' the issue to other colleagues in the PC world!

    Looks like I'll need to move forward with the repair option though, and see where that leads.

    I'm going to give another day or two to see if other folks can chime in too.

    Right now, the system is operational - albeit in a Windows unwanted state (e.g. My profile now linked to my MS account which is totally unacceptable - to me.)
      My System SpecsSystem Spec


  7. Joined : Oct 2016
    Posts : 4
    Windows 10 Build 1607
       4 Weeks Ago #7

    This past weekend I updated my OS to build 14393.351 [Win 10 1607].

    This appeared to correct the issue with the moving around Start Menu pinned applications. The approach was provided via elsewhere, with the following steps:

    Open the Settings menu and go to Update & security > Windows Update. If not already shown, the select the option to Check for Updates. On my system, the update was already pending.

    I also restored my C:\Users\Default folder from my backup archive, though I had to go back about 3 generations to find a viable version. Apparently, the issue was triggered some where between Aug and Sep backup versions, though it remained dormant until needed (Oct). This didn't solve the problem entirely, as I eventually had to create the new profile via Safe Mode, from the built in Administrator account (tried before the restore w/o effect.) This required the definition of a new profile via Computer Management, Users.

    My system still is a bit sick, though I'm making progress.
      My System SpecsSystem Spec


 


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