What to do if Windows 10 could not connect to the ProfSvc service

Madalina Dinita
by Madalina Dinita
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The User profile service (ProfSvc) is a Microsoft service in charge of loading and unloading the user profile.
Sometimes, the ProfSvc may be disabled or blocked.

The consequence is that users won’t have the possibility to login into their user profiles, apps could have issues accessing users’ data, and some component installed to receive profile event notifications won’t actually receive them. Some users have associated the problem with the installation of Windows 10.

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In this article, we will explain to you how to get rid of this problem in a few simple steps so as to bring your user profile to a normal state of use.

The default scenario and its consequences

In Windows 10, the User Profile Service is running as a Local System when the operating system starts. It can be useful to remember that the ProfSvc is running with different services in a shared process of svchost.exe.

In the case of a failure in the starting process, the details are recorded in the Event Log. In this case, Windows 10 will notify the user that the ProfSvc service has failed to start due to particular errors or events.

In this case, your apps, the User manager and shared PC Account Manager (shpamsvc) may not function properly and the authentication could be denied.

Possible causes of ProfSvc issues

The causes of a stopped, disabled or incorrectly working ProfSvc can be related to:

We’ll keep these three scenarios in mind. Understanding why this problem occurs allows us to fix it. This scenario can happen basically anytime: during the boot up phase, when a specific program is activated or when users are trying to use a specific function of a program.

How to fix ProfSvc connection issues

The first and most natural action is to solve the problem by resetting your account password. If the issue could not be solved using this approach, the computer will display the following error alert: “Windows couldn’t connect to the ProfSvc service”.

Before diving in into more fixes, check if the apps, the user manager, shared PC Account Manager (shpamsvc) and the natural authentication are well configured, and make sure they are working correctly.

Solution 1 – Restore the original ProfSvc service from Windows 10

  1. Click on Start
  2. Type Command Prompt as an administratorcommand prompt run as administrator
  3. Type the following commands in the command window:
    • sc config ProfSvc start= auto
    • sc start ProfSvc
  4. Press Enter
  5. Close the command window
  6. Restart your computer and check if the problem persists.

Note: The ProfSvc service uses the profsvc.dll file that is in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore the original version from Windows 10 installation media.

If this procedure did not work, you can try the solution 2 listed below.

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Solution 2 – Create a new user account

The first intention you might have is to enable the profile. For this purpose, you need to login into the user profile and change the ProfSvc service to On. Then, open the profile to activate it again.

If the option to login in your own account in Safe Mode is not possible, it is likely that your ProfSvc is corrupted. In this case, the solution is to enable the built-in administrator. You can do that by following the steps below:

  1. Click on the power button on the sign-in screen and press Shift + Restart to go to safe mode
  2. You are now into the recovery boot menu. Go to Troubleshoot
  3. Click on Advanced options and select Startup settings.
  4. Now it can be seen a list where you can choose Safe Mode with Command prompt.Safe Mode command prompt
  5. Type: net user administrator /active:yes and press Enter.
  6. Login into the built-in administrator user profile
  7. Create a new user profile with administrator privileges.
  8. It is now possible to delete the corrupted user account from the built-in administrator.
  9. Lock your screen, pressing Windows key + L, and sign-in at the Administrator account.
  10. Check if the issue persists
  11. Now you can disable the built-in administrator account by typing: net user administrator /active:no in the Command prompt (Admin).

The first 12 steps should allow you to be ready to create a new user account. Now you can follow these final steps to solve the problem.

Create a new user account:

  1. Click on Start and type Command prompt (Admin).
  2. Type net user NewAccount password /add and click Enter.
  3. Type net localgroup Administrators NewAccount /add and click Enter.
  4. Log off from the system and login to the new user account.

Following these steps, you have enabled the built-in administrator and created a new user profile. Transfer all the data from the corrupted user to the newly created user profile and verify if the issue has been resolved.

Following one of this two solutions listed above should help you fix this your issue. If you have any suggestions, let us know in the comments section below.

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