batcmd.com Windows 10 Services

Superfetch - Windows 10 Service

Maintains and improves system performance over time.

This service also exists in Windows 7, 8 and Vista.

Startup Type

Windows 10 edition 1507 1511 1607 1703
Home Automatic Automatic Automatic Automatic
Pro Automatic Automatic Automatic Automatic
Education Automatic Automatic Automatic Automatic
Enterprise Automatic Automatic Automatic Automatic

Default Properties

Display name:Superfetch
Service name:SysMain
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%WinDir%\system32\sysmain.dll
Error control:ignore
Object:LocalSystem
Privileges:
  • SeTcbPrivilege
  • SeProfileSingleProcessPrivilege
  • SeTakeOwnershipPrivilege
  • SeDebugPrivilege
  • SeIncreaseBasePriorityPrivilege

Default Behavior

The Superfetch service is running as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Superfetch fails to load or initialize, Windows 10 start up proceeds. No warning is displayed, but the error is recorded into the Event Log.

Dependencies

Superfetch is unable to start, if at least one of the following services is stopped or disabled:

Restore Default Startup Type for Superfetch

Automated Restore

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

2. Save the RestoreSuperfetchWindows10.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 sysmain.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.