Windows 11 100% disk usage in Task Manager- Solved

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Here are a few fixes that have helped other users resolve their Windows 11 100% disk usage problem. You may not need to try them all; just work your way down the list until you find the one that works for you.

  • Disable SuperFetch service 
  • Update your device drivers
  • Perform a diskcheck
  • Reset Virtual Memory
  • Disable Antivirus Software temporarily

Disable SuperFetch

SuperFetch helps to decrease boot time and make must-load programs more efficient. However, it has been identified as a potential cause of disk performance issues in Windows 8 and later versions of Windows, including Windows 11. Here’s how to stop this service:

1) On your keyboard, press the Windows logo key, type command prompt, then select Run as administrator.

100% disk usage Windows 11

Click Yes at the User Account Control prompt. 

3) The command prompt will once again display. Type in the following command: 

net.exe stop superfetch

4) Hit Enter on your keyboard. 

100% disk usage fix Windows 11

5) If the command above isn’t valid, try the following one instead:

 net.exe stop sysmain

6) Wait for a few minutes to see if your computer starts performing better. Or check your computer’s disk usage: Type “task manager” in the Windows 11 search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

If the 100% disk usage problem persists, try the next method, below.

Update your device drivers

If the steps above don’t resolve your 100% disk usage problem in Windows 11, it may be caused by a device driver. 

You can automatically update all your device drivers to the latest by using third-party software. You can look for the Windows update as well if there are any updates for different drivers available.

Perform a disk check

1) On your keyboard, press the Windows key and X at the same time, then choose Windows terminal (Admin)

2) Click Yes at the User Account Control prompt. 

3) The command prompt will once again display. Type in the following command:

chkdsk.exe /f /r

4) Hit Enter on your keyboard, then type Y to confirm that you’d like to perform the disk check the next time you restart your computer. Please make sure you have closed all of your applications first.

100% disk usage Windows 10

IMPORTANT: Disk check will start the next time you boot your PC and it might take some time to complete (could be a day for some). If, when you restart, you don’t have time to wait for the disk check to complete, you can skip it. You’ll need to reschedule it again, as described above, though. 

5) Once you’ve completed the disk check, check your computer’s disk usage again: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

If the 100% disk usage problem persists, try the next method, below.

Reset Virtual Memory

Virtual memory can be considered an extension of your computer’s physical memory. It’s a combination of RAM and a portion of your hard drive. When the RAM isn’t enough to perform a task, Windows will temporarily store files in virtual memory, then swap them back to RAM when required. 

The misconfigured virtual memory settings may have caused this issue in the first place.

1. At first, right-click on the Windows icon and tap on “Run“.

2. Then, type “sysdm.cpl” and hit Enter.

3. When the System Properties opens up, click on the “Advanced” tab.

4. In the Performance‘ tab, tap on the “Settings“.

5. Go to the “Advanced” settings tab.

6. In the ‘Virtual memory’ section, click on “Change” to change the paged file size change.

Virtual Memory Change Win 11 Min
  • In the Virtual Memory window, uncheck the option “Automatically manage paging file size for all drives” so you can adjust it manually.
  • You have to select the drive where you have installed Windows 10 into.
  • Select “C:” drive from the list of drives.
  • Then, click on “Custom size“.
  • Then, set the ‘Initial size’ and the ‘Maximum size’ accordingly.
  • Once you are done, Don’t forget to click on “OK” to save the settings.
  • If a warning message pops up on your screen, click on “Yes
  • Then, click on “OK“.
  • Coming back to the Performance Options window, click on “Apply” and then click on “OK” to save the changes.

Same way, tap on “Apply” and “OK” to save the changes.

Now, restart your computer to see how these changes affect your system.

Clear the Temporary Files

Clear all your computer’s ‘temp’ files. On your keyboard, press Windows key and R at the same time, then in the Run form, type temp and hit Enter. This will invoke Windows Explorer with your Temp folder open, showing you all the temp files on your computer. 

Select all the files in the Temp folder and delete them. 

Check your computer’s disk usage: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

Disable Antivirus Software temporarily

If you’ve installed antivirus or anti-malware programs such as Norton, Kaspersky, AVG, Avast Behavior Shield, or Malwarebytes, you should temporarily turn them off or disable them to see if they’re causing your disk usage problem. 

Please see your antivirus software’s documentation to learn how to disable it. 

Note that Microsoft has its own default anti-malware, Windows Defender. It’s automatically enabled even if you also have other antivirus applications installed. Even if you disable your other antivirus programs, Windows Defender is always there for you during that certain time range. So, no need to worry too much about temporarily turning antivirus off. 

Chose the High Performance mode

Windows limits the performance significantly in the balanced or power saver mode. So, choosing the High-Performance mode should work.

  • At first, press the Windows key+R keys together.
  • Then, type “powercfg.cpl” and hit Enter. This will open up the Power Options.
  • Then, look for the “High Performance” mode. If you can’t find it, tap on the “Show additional plans” to expand it.
  • Next, select the “High Performance” plan from the available options.
  • Then, check the status of the disk usage in the Task Manager.

Clean boot the system

Clean booting will let you boot your system without the interference of any third-party apps.

1. At first, right-click on the Windows key and tap on “Run“.

2. Then, type “msconfig” in the Run terminal and click on the “OK“.

3. Just, click on the “General” tab.

4. Then, check the “Selective startup” option and tick the option “Load system services“.

6. Then, go to the “Services” tab.

7. After that, you need to check the “Hide all Microsoft services” box. All the system services will disappear and all the third-party services will be selected.

8. Finally, click on the “Disable all“.

  • You have to go to the “Startup” section.
  • Then, tap on the “Open Task Manager“.
  • Task Manager will open up.
  • Here, you will see many unwanted applications that autostart with the system.
  • Next, right-click on the service and tap on “Disable“.
  • When you have disabled all the startup of unnecessary applications, close the Task Manager window.
  • Just, click on “Apply” and then on “OK“.
  • As soon as you have saved the settings, a prompt will appear.
  • Just, click on “Restart” to reboot the system applying those changes.
  • Check if your hard disk is still showing 100% usage or not.

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