Superfetch - Windows 8 Service
Maintains and improves system performance over time.
This service also exists in Windows 10, 11, 7 and Vista.
Startup Type
| Windows 8 edition | Windows 8 | Windows 8.1 | Windows 8.1 Update 1 |
|---|---|---|---|
| Core | Automatic | Automatic | Automatic |
| Pro | Automatic | Automatic | Automatic |
| Enterprise | 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: |
|
Default Behavior
The Superfetch service runs 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 8 start up proceeds. No warning is displayed, but the error is recorded into the Event Log.
Dependencies
Superfetch won't start, if the following services are stopped or disabled:
Restore Default Startup Type of Superfetch
Automated Restore
1. Select your Windows 8 release and edition, and then click on the Download button below.
2. Save the RestoreSuperfetchWindows8.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.
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 8 installation media.