How To Fix Failed To Connect To Windows Service

Sometimes, when you log on to Windows 10 after entering the username and countersign, y'all may see an error "The User Contour Service failed the sign-in. User profile cannot be loaded". The login is not performed, and you are asked to specify the username and password repeatedly. Among the about common mistakes with loading a user profile are:

• Corrupted user profile on disk (local or roaming);
• Antivirus software that performs files scanning and blocking in the profile folder at the time of authorisation. This causes an fault when loading the user contour;
• Corrupted Windows registry file;
• Corrupted default profile or incorrectly configured NTFS permissions.

Let'southward consider how to fix User contour cannot be loaded mistake in Windows 10 and log on into the organisation.

First of all, we recommend restarting your computer and try to log in using your account. If the reboot didn't help, go to the following methods.

Mistake "User Profile Cannot be loaded" When Logging in With a New User

If the error The User Contour Service failed the sign-in appears when you first log in to the organization under a new account, it ways that the Default contour is corrupted or the permissions on the Default profile folder have been inverse. The default profile is the directory with the profile template for all users of this calculator. Default profile settings are copied to the new profile at the first logon. If the C:\Users\Default directory is corrupted or missing, the Windows Profile service won't be able to copy data from this directory to the new profile directory.

The chief file in the Default Contour binder is NTUSER.DAT. This file stores user profile settings, preferences, configurations, etc. If this file is missing or corrupted, yous won't be able to login under your user account.

To set the problem, it is enough to supersede the damaged C:\Users\Default folder. Copy the same folder from the working operating arrangement (Windows 10 builds should match). Verify that the backdrop of the Default folder and the NTFS permissions friction match.

In some cases, it is enough to copy the C:\Users\Default\ntuser.dat file to ntuser.dat_bak file and supercede it with the ntuser.dat file from the Guest or Public profile folder on the same computer.

Restart your computer and endeavour to log in to the new account.

Check the current permissions on the C:\Users\Default folder and make certain that information technology inherits permissions from its parent binder C:\Users. You tin can listing the NTFS permissions with the icacls tool:

icacls c:\Users\Default

Hither is the default binder permissions:

NT AUTHORITY\SYSTEM:(OI)(CI)(F)

BUILTIN\Administrators:(OI)(CI)(F)

BUILTIN\Users:(RX)

BUILTIN\Users:(OI)(CI)(IO)(GR,GE)

Everyone:(RX)

Everyone:(OI)(CI)(IO)(GR,GE)

Error User Profile Cannot be Loaded for Only Ane Single User

If merely one user has a trouble with the contour, and so simply the directory or registry entry with the user'due south contour is damaged. Attempt to logon as another user with administrator permissions. If it'south not possible, kicking your Windows 10 in Safe mode, in the recovery console, or the Windows PE environment.

First, bank check the disk for errors using chkdsk. File system errors are the about common crusade for corrupted Windows user profiles. Run the command:

chkdsk c: /f /r

Restart your reckoner and try to log in. In some cases, this may be enough. If this doesn't aid, boot your computer in Safe mode again. Open the Services.msc console and make sure the User Profile Service is started and configured to start automatically.

1. Open the Registy Editor (regedit.exe) and become to the registry central HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList;
2. In the list of the registry key tree, there will be several sections with long names starting with S-1-5. Each line corresponds to the security identifier (SID) of a Windows user account and linked to a unmarried user profile. You tin list the SIDs of all your local user accounts using the command:

   wmic useraccount get domain,name,sid

   

3. To decide which profile belongs to a specific user, you lot need to look at the value of the ProfileImagePath parameter. In our example, you can run across that central Due south-1-five-21-3650440056-3766451173-3310994491-1001 corresponds to the root user (C:\Users\root). Check if this binder exists on the disk;
   
4. If you detect your user and the proper name of the registry primal doesn't end with .bak, then change the value of the DWORD 32-bit parameters Land and RefCount to 0. If these parameters are missing, create them;
5. Sometimes, the profile tree for your profile has two sections. 1 of them ends in .bak. You need to rename the primary department to .bak in the registry, and .bak to the main section. If there is just a fundamental with .bak, simply remove this extension;
   
6. Verify that the value of the RefCount and State parameters is 0;
7. Restart the computer. In most cases, this should set the problem with the damaged user'south contour.

If this doesn't help, the official documentation Microsoft recommends to create a new account and copy the profile information at that place.

Troubleshooting Errors with the User Contour Service Events

The admin'due south style to troubleshoot the user contour load errors is to analyses the fault events of the User Profile Service. If you lot can login Window under with a dissimilar business relationship, you need to open the Outcome Viewer and go to the section Awarding and Services Logs > Microsoft > Windows > User Contour Service > Operational. Discover the about recent error outcome in this log.

If you cannot login Windows, yous tin can kicking the device in the Rubber Style and copy the log file "%SystemRoot%\System32\Winevt\Logs\Microsoft-Windows-User Profile Service%4Operational.evtx" to an external USB bulldoze for analysis on another figurer.

The near common User Profile Service errors for problems loading user contour are:

1. Outcome ID 1509:
   Windows cannot copy file \\?\C:\Users\Default\ to location \\?\C:\Users\username\. This error may be acquired by network problems or bereft security rights.
   DETAIL – Access is denied
   Or
   Detail- The file cannot exist accessed by the system
   Solution : Check the permissions on the specified user profile folder.
2. Upshot ID 1500:
   Windows cannot log you lot on because your profile cannot exist loaded. Check that
   yous are continued to the network and that your network is functioning correctly.
   DETAIL – The system cannot detect the file specified.
   Solution : Check if the user profile folder exists on the local drive; make certain the respective registry cardinal HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList points to this folder. Make sure the NTUSER.DAT file is present in the user contour binder. If this file is removed or corrupted, you will take to manually re-create information technology from another user contour on this computer or from another computer with a similar version of Windows.
3. Issue ID 1508:
   Windows was unable to load the registry. This problem is often caused by insufficient memory or insufficient security rights.
   Particular – The system has attempted to load or restore a file into the registry, but the specified file is non in a registry file format.
   for C:\Users\marco\ntuser.dat
   Solution : The NTUSER.DAT in the user profile binder is corrupted and needs to be replaced (check the solution above).

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