How to Start/Stop Superfetch service
Service name: SysMain
Display name: Superfetch
Description:
Maintains and improves system performance over time.
Path to executable:
C:\Windows\system32\svchost.exe -
CMD:
This method shows you how to Start/Stop Superfetch service from Command Prompt
Please perform the following steps:
Please go to Start and click on the Search programs and files
Type cmd, right click on cmd icon under the Programs and click on Run as administrator
Please confirm User Account Control pop-
Please select, right and copy a registry key from below, then right click on command prompt window, select Paste and press Enter
To Start Superfetch service:
net start SysMain
Note: You can’t start a service if Startup type is on Disabled.
To Stop Superfetch service:
net stop SysMain
To change Startup type:
Automatic:
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v Start /t REG_DWORD /d 2 /f
Manual:
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v Start /t REG_DWORD /d 3 /f
Disabled:
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v Start /t REG_DWORD /d 4 /f
Automatic (Delayed Start):
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v Start /t REG_DWORD /d 2 /f
Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v DelayedAutostart /t REG_DWORD /d 1 /f
When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.
REG add "HKLM\SYSTEM\CurrentControlSet\services\SysMain" /v DelayedAutostart /t REG_DWORD /d 0 /f