Sometimes, when you log on khổng lồ Windows 10 after entering the username và password, you may see an error “The User Profile Service failed the sign-in. User protệp tin cannot be loaded”. The login is not performed, và you are asked to specify the username và password repeatedly. Among mỏi the most comtháng mistakes with loading a user profile are:


Corrupted user profile on disk (local or roaming);Antivirus software that performs files scanning và blocking in the profile thư mục at the time of authorization. This causes an error when loading the user profile;Corrupted Windows registry file;Corrupted default protệp tin or incorrectly configured NTFS permissions.

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Let’s consider how khổng lồ fix User profile cannot be loaded error in Windows 10 and log on into the system.

First of all, we recommend restarting your computer and try khổng lồ log in using your trương mục. If the reboot didn’t help, go to the following methods.


Restart your computer and try khổng lồ log in khổng lồ the new account.

Cheông chồng the current permissions on the C:UsersDefault folder & make sure that it inherits permissions from its parent folder C:Users. You can danh sách the NTFS permissions with the icacls tool:

icacls c:UsersDefaultHere is the mặc định folder permissions:

xuất hiện the Registy Editor (regedit.exe) & go lớn the registry key HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList;In the các mục of the registry key tree, there will be several sections with long names starting with S-1-5. Each line corresponds lớn the security identifier (SID) of a Windows user account and linked to a single user profile. You can danh mục the SIDs of all your local user accounts using the command:

wmic usertrương mục get domain name,name,sid

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Troubleshooting Errors with the User Profile Service Events

The admin’s way lớn troubleshoot the user protệp tin load errors is khổng lồ analyses the error events of the User Profile Service. If you can login Window under with a different trương mục, you need to lớn open the Event Viewer and go lớn the section Application and Services Logs > Microsoft > Windows > User Protệp tin Service > Operational. Find the most recent error sự kiện in this log.

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If you cannot login Windows, you can boot the device in the Safe Mode và copy the log tệp tin “%SystemRoot%System32WinevtLogsMicrosoft-Windows-User Profile Service%4Operational.evtx” lớn an external USB drive for analysis on another computer.

The most common User Protệp tin Service errors for problems loading user profile are:

Event ID 1509:Windows cannot copy file \?C:UsersDefault khổng lồ location \?C:Usersusername. This error may be caused by network problems or insufficient security rights.DETAIL – Access is deniedOrDetail- The tệp tin cannot be accessed by the systemSolution: Chechồng the permissions on the specified user profile folder.Event ID 1500:Windows cannot log you on because your profile cannot be loaded. Chechồng thatyou are connected lớn the network & that your network is functioning correctly.DETAIL – The system cannot find the tệp tin specified.Solution: Cheông chồng if the user protệp tin folder exists on the local drive; make sure the corresponding registry key HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList points to lớn this thư mục. Make sure the NTUSER.DAT file is present in the user protệp tin folder. If this tệp tin is removed or corrupted, you will have khổng lồ manually copy it from another user profile on this computer or from another computer with a similar version of Windows.

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Event ID 1508:Windows was unable to load the registry. This problem is often caused by insufficient memory or insufficient security rights.DETAIL – The system has attempted lớn load or restore a tệp tin into lớn the registry, but the specified file is not in a registry tệp tin format.for C:Usersmarco tuser.dat
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Solution: The NTUSER.DAT in the user profile folder is corrupted and needs to lớn be replaced (kiểm tra the solution above).

Chuyên mục: Chia sẻ