batcmd.com Windows 10 Services

User Data Storage - Windows 10 Service

Handles storage of structured user data, including contact info, calendars, messages, and other content. If you stop or disable this service, apps that use this data might not work correctly.

This service exists in Windows 10 only.

Startup Type

Windows 10 edition 1507 1511 1607 1703
Home Manual Manual Manual Manual
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Default Properties

Display name:User Data Storage
Service name:UnistoreSvc
Type:user share process template
Path:%WinDir%\System32\svchost.exe -k UnistackSvcGroup
File:%WinDir%\System32\unistore.dll
Error control:ignore
Object:LocalSystem
Privileges:
  • SeImpersonatePrivilege
  • SeCreateGlobalPrivilege

Default Behavior

If User Data Storage fails to load or initialize, Windows 10 start up proceeds. No warning is displayed, but the error is recorded into the Event Log.

Dependencies

If User Data Storage is stopped, the following services cannot start:

Restore Default Startup Type for User Data Storage

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreUserDataStorageWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the unistore.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.