How to FIX the User Profile Service failed the Logon

Sometimes we tend to use temporary user logon to access the system to modify certain changes for better functionality and efficient usage of the system. This could be as the administrator or other user. This affects the standard protocol of the Microsoft’s policy of allowing a limited no. of users on a system.

{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

Symptoms –

When you log on to a Windows 7-based or a Windows Vista-based system by using a temporary profile, you receive the following error message:

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

Causes –

Denial of Administrator’s Rights for the User Logon.

Solution –

Method 1: Fix the User Account Profile

Follow These Steps:

Important: This method contains steps that tell you How to Modify the Registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.

• Click Start, type regedit in the Search box, and then press ENTER.
• In Registry Editor, locate and then click the following registry subkey:
  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
• In the navigation pane, locate the folder that begins with S-1-5 (SID key) followed by a long number.
• 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:
• Right-click the folder without .bak, and then click Rename. Type .ba, 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.
• 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.
• 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 State, type 0, and then click OK.
• Close Registry Editor.
• Restart the computer.
• Log on again with your account

If the above given steps didn’t help you then nothing will.

{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

Alternatively you could look to use Advanced System Repair Tool for your problem; The User Profile Service failed the Logon; User Profile cannot be loaded. This tool not only scans and cleans your system of viruses but also repairs the damages due to corruption automatically. It acts as a data controller and optimizer for efficient management of the system.