User Profile Service (ProfSvc) Defaults in Windows 8

This service is responsible for loading and unloading user profiles. If this service is stopped or disabled, users will no longer be able to successfully sign in or sign out, apps might have problems getting to users' data, and components registered to receive profile event notifications won't receive them.

Default Settings

Startup type:Automatic
Display name:User Profile Service
Service name:ProfSvc
Service type:share
Error control:normal
Group:profsvc_group
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k netsvcs
File:%SystemRoot%\system32\profsvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ProfSvc
Privileges:
  • SeBackupPrivilege
  • SeRestorePrivilege
  • SeTakeOwnershipPrivilege
  • SeDebugPrivilege
  • SeImpersonatePrivilege
  • SeAssignPrimaryTokenPrivilege

Default Behavior

User Profile Service is a Win32 service. In Windows 8 it is starting automatically during the operating system startup. Then the User Profile Service runs as LocalSystem in a process of svchost.exe, sharing it with other services. If User Profile Service fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the ProfSvc service hasn't been started.

Dependencies

User Profile Service can't start, if the Remote Procedure Call (RPC) service is disabled or not available.

If User Profile Service is disabled, the Application Information service will not be started and initialized.

Restore Default Startup Configuration for User Profile Service

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_ProfSvc_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The ProfSvc service is using the profsvc.dll file that is located in the %WinDir%\system32 folder. If the file is corrupted or deleted, you can put it back in there.