The User Profile Service failed the logon. User profile cannot be loaded.

Situation: The user can’t login his Windows 7 computer with this message: The User Profile Service failed the logon. User profile cannot be loaded.

Troubleshooting: 1. Restart the computer and then try it.

2. Fix the user account profile

  1. Click Start, type regedit in the Search box, and then press ENTER.

2) In Registry Editor, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

3) In the navigation pane, locate the folder that begins with S-1-5 (SID key) followed by a long number.

4) Click each S-1-5 folder, locate the ProfileImagePath entry in the details pane, and then double-click to make sure that this is the user account profile that has the error. Click each S-1-5 folder, locate the ProfileImagePath entry in the details pane, and then double-click to make sure that this is the user account profile that has the error. •If you have two folders starting with S-1-5 followed by some long numbers and one of them ended with .bak, you have to rename the .bak folder. To do this, follow these steps: a) Right-click the folder without .bak, and then click Rename. Type .ba, and then press ENTER. Right-click the folder without .bak, and then click Rename. Type .ba, and then press ENTER.   b) Right-click the folder that is named .bak, and then click Rename. Remove .bak at the end of the folder name, and then press ENTER. Right-click the folder that is named .bak, and then click Rename. Remove .bak at the end of the folder name, and then press ENTER.   c) Right-click the folder that is named .ba, and then click Rename. Change the .ba to .bak at the end of the folder name, and then press ENTER. Right-click the folder that is named .ba, and then click Rename. Change the .ba to .bak at the end of the folder name, and then press ENTER. •If you have only one folder starting with S-1-5 that is followed by long numbers and ends with .bak. Right-click the folder, and then click Rename. Remove .bak at the end of the folder name, and then press ENTER.

5) Click the folder without .bak in the details pane, double-click RefCount, type 0, and then click OK. Click the folder without .bak in the details pane, double-click RefCount, type 0, and then click OK.

6) Click the folder without .bak, in the details pane, double-click State, type 0, and then click OK. Click the folder without .bak, in the details pane, double-click State, type 0, and then click OK.

7) Close Registry Editor.

8) Restart the computer.

9) Log on again with your account.

3. Create a new account and copy the data from the old account to the new account.

4. Delete the profile by using the Computer Properties dialog box. To do this, follow these steps: 1)Click Start, right-click Computer, and then click Properties.

2) Click Change settings. Click Change settings.

3) In the System Properties dialog box, click the Advanced tab. In the System Properties dialog box, click the Advanced tab.

4)In the User Profiles area, click Settings.

5) In the User Profiles dialog box, select the profile that you want to delete, click Delete, and then click OK.

6)Click Start, type regedit in the Search box, and then press ENTER. 

7) Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

8) Right-click the SID that you want to remove, and then click Delete. 

9) Log on to the computer and create a new profile.

Please view the step by step video:

Published by

Bob Lin

Bob Lin, Chicagotech-MVP, MCSE & CNE Data recovery, Windows OS Recovery, Networking, and Computer Troubleshooting on http://www.ChicagoTech.net How to Install and Configure Windows, VMware, Virtualization and Cisco on http://www.HowToNetworking.com

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