Disk Usage reaching 100% disable superfetch in Windows PC

In some occasions when running Windows on Laptops and similar kind of machines with a less specification, we could sometime notice Disk Usage is reaching to 100%. 


This could be happened due to many reasons. But, in here we discuss about Superfetch service. This particular Superfetch service is a Windows feature that enables Preloading most frequently used Windows Applications. Even if the, original purpose of this is to boost loading speed, the Background process running in Windows could certainly cause high resource utilization, due to which HDD (Hard Disk Drive) usage would reach up to 100%. 


We can temporarily mute (disable) the Service, for this a System Restart is although imminent. 

1. Go to Start ⊞ Win

2. Type CMD.

3. Right Click on CMD Icon on Start Menu.

4. Open Command Prompt like 'Run as Administrator'.

5. Type Below Command.

sc stop “SysMain” & sc config “SysMain” start=disabled

6. Reboot Computer.


Now, you may be able to see if it actually do the trick and cause a drastic change in Hard Disk Utilization. If it doesn't provide any solution and you would need the Superfecth for faster application loading, use below command. 


1. Go to Start ⊞ Win

2. Type CMD.

3. Right Click on CMD Icon on Start Menu.

4. Open Command Prompt like 'Run as Administrator'.

5. Type Below Command.

sc config “SysMain” start=auto & sc start “SysMain”

6. Reboot Computer.


Signing Off ~ Peace!!

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