How to Fix: User Profile Service Failed to Login – Profile Corrupt (Solved) – wintips.org

In some cases, the user profile gets corrupted due to several reasons such as hardware problem (like bad memory or hard drive), malware infection, forced shutdown, etc. In this case, Windows cannot load your user profile and you will receive the following message. While logging on to Windows”The user profile service failed to log in. Unable to load user profile“. Fortunately, if you encounter this problem, don’t panic because there are several solutions to this problem… Just follow the steps below.

The user profile service failed to log in.  Unable to load user profile

In this guide you can find detailed instructions on how to fix “The user profile service failed to log in. Unable to load user profile” error when you try to log in to your user profile.

How to resolve the “User Profile Service failed to log on” error in Windows 7, Vista, and XP.

Method 1: Scan your computer for malware.

First make sure your computer is clean of malware by following steps 1 to 12 in this guide: Malware Removal Guide to clean your infected computer and then try to access the compromised profile normally.
If you still “The user profile service failed to log in. Unable to load user profile” error-problem then proceed to method 2.

Method 2: Restore your computer to its previous working state.

To see if the Corrupt User Profile error is resolved, try restoring your computer to a previous state. Follow the steps in this article to restore your system to its previous working state:

Windows XP: How to Start and Use System Restore in Windows XP
Windows 7 and Vista: How to start and use System Restore in Windows 7 or Vista.

wait untilSystem Restore” process is complete and restart the system normally and try to access the compromised user profile. If you still “The user profile service failed to log in. Unable to load user profile” error-problem, then go to method 3.

Method 3: Log in as another user with administrator permission and fix the corrupted user profile.

For this step, you must start Windows in safe mode and log in with a different account that has administrative privileges*.

*Note: If you don’t have another account with administrator rights, follow the step in this guide to enable a hidden administrator account, and then continue with the remaining steps.

Step 1. Start your computer in safe mode.

To boot Windows 7, Vista and XP in safe mode:

  1. Close all programs and restart your computer.
  2. Click on “F8While your computer is booting, press the ” button before the Windows logo appears.
  3. When “Windows advanced settings menuIf it appears on your screen, use the arrow keys on your keyboard to highlight it.Safe mode” option and then click “INTRODUCTION“.

An alternative method if”F8” key method does not work:

  1. Click on “Power on/off” button for at least (5) seconds when Windows loads to shut down (shut down) your computer.
  2. Then “Power on/offPress ” again to turn on (turn on) your computer.
  3. You will usually be told that Windows has failed to start. Meanwhile:
    • Windows XP: He told you “Advanced options menu” automatically.
    • Windows 7 or Vista: If Windows allows you to “Advanced options menu” automatically, then select “Start Windows normally” option > “Enter” > and immediately press the buttonF8“To login” buttonAdvanced options“.
  • (This method also works for Windows 2003 and 2008 Server versions)

Windows Safe Mode

Step 2. Locate the corrupted profile subkey in the Windows registry.

1. Open Windows Registry editor. For this:

  1. Click on “WindowsPicture-201_thumb_thumb_thumb_thumb1_t + “RClick the ” button to download Running dialog box.
  2. write “regedit” and click Enter.

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Important: Before you proceed with modifying the registry, make a backup first. For this:

a. From the main menu, go to File & select Export.

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b. Specify the destination (for example, your Work table), give a file name (eg “Registry Backup”) and click Save.

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3. Inside the Windows registry (from the left pane), navigate to this key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

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4. underProfile listyou should see some subkeys called “registry key”.S-1-5‘ followed by a long number (eg ‘S-1-5-21-2437038405-1741144717-1541778728-1000′).

Now look carefully and if you see:

A. Two subkeys with the same name, but in one of them .buck an extension at its end (eg ‘S-1-5-21-2437038405-1741144717-1541778728-1003’ &’S-1-5-21-2437038405-1741144717-1541778728-1003′.bak’), then proceed to step 3.

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B. Subkeys with different names and not a ‘.bak‘ extension in any of them (see screenshot below) then proceed to step 4.

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C. ‘ with one or more subkeys.see” extension at the end of them (see screenshot below) then proceed to step 4.

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Step 3. Fix a corrupted user profile using the “.bak” subkey.

1. Click on each ‘S-1-5-x-xxxxxxx” lower key without .buck extension and see the information in the right panel “ProfileImagePath” value to find the profile subkey that matches the compromised user profile.

For example: If a user has a broken profile problem, “User 1“then”ProfileImagePath” data value should be “C:\Users\User1“.

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2. Once you find the appropriate subkey for the broken profile, go to the left panel and select “.” rename this subkey by adding .ba” to the end of the extension. For this:

– Right click in the lower key (left panel) and select “Change the name“.

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‘ add.ba‘ subkey extension to the end of the profile name and click ” .Enter“.

change the name of eg ‘S-1-5-21-2437038405-1741144717-1541778728-1003’ lower keyS-1-5-21-2437038405-1741144717-1541778728-1003.ba’.

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3. Select the subkey with the same name and the ‘ sign.see‘ at the end, install and remove the extension ‘.buck’ extension from this subkey. For this:

Right click in the subkey and select “Change the name“.

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Delete “.see” starting from the end of the extension “Enter“.

for example, rename ‘S-1-5-21-2437038405-1741144717-1541778728-1003.bak’ lower keyS-1-5-21-2437038405-1741144717-1541778728-1003′.

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4. Now click on that subkey (subkey you ‘.see‘ extension) and in the right pane:

Double click to open “RefCount” key.

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install the RefCount Value information to0” (zero).

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5. Do the same with “”.State” button (set its value to “0“).

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6. Close Registry Editor and restart your computer.

Step 4. Delete the offending user profile from the registry.

1. Click on each ‘S-1-5-x-xxxxxxx” lower key and view data in the right pane”ProfileImagePath” value to find the profile subkey that matches the compromised user profile.

For example: If a user has a broken profile problem, “User 1“then”ProfileImagePath” data value should be “C:\Users\User1“.

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2. Now select the subkey corresponding to the compromised user profile in the left panel and delete it.

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3. Close Registry Editor and restart your computer.

4. After restarting, log in to your corrupted user (profile) account. (Your profile should be clean now).

5. Now log out and log in with your administrator account.

6. Open Registry Editor and navigate to that subkey again:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

7. Now you should see below Profile list a new subkey with the valueCorruptedProfileName.YourComputerName” on ProfileImagePath the key.

(e.g. your compromised user profile “User 1” username and computer name “WINTIPS” followed by value data above ProfileImagePath must be a keyC:\Users\User1.WINTIPS“).

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8. Double click at ProfileImagePath press the button and “.Computer name” record from the data value.

eg rename ‘C:\Users\User1.WINTIPS’ toC:\Users\User1′

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9. Close the registry editor.

10. Open Windows Explorer and go toC:\Users‘ folder.

11. Turn on the view of hidden files and folders. For this:

a. click on Tools menu and select Folder options.

b. click on Appearance Tab.

c. Choose the Show hidden files, folders and drives checkbox.

d. Clean the Hide protected operating system files check the box.

e. press Yes confirm and then press OK.

12. Finally, from the folder containing “CorruptedProfileName.YourComputerName” (eg “C:\Users\User1.WINTIPS”) and copy the following three (3) files to the offender’s user profile folder (eg “C:\Users\User1”):

Ntuser.dat
Ntuser.dat.log
Ntuser.ini

13. Restart your computer and now log in to the compromised user profile. You should be able to log in now without any problems and without losing your files and settings!

That’s it! Let me know if this guide helped you by leaving a comment about your experience. Please like and share this guide to help others.

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