How to Fix 100% Disk Usage Issue in Windows 10

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Specifically, this guide features three DIY solutions with screenshots on how to fix 100% disk usage in Windows 10. The first solution involves disabling notifications & actions.

Meanwhile, the second solution is to perform SFC and DISM scans. That’s not all; the third solution is all about performing a clean boot to fix the problem.

By the way, this guide also contains an FAQ section that answers some of the most asked questions about this problem.

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Fix 100% Disk Usage in Windows 10 by Disabling Notifications & Actions

Fix 100 Disk Usage In Windows 10 By Disabling Notification & Actions

Sometimes, unnecessary notifications and actions can be the cause of 100% disk usage in Windows 10. Hence, in order to fix the issue, you have to disable the notifications and actions.

 

To do this, follow the procedures below.

  1. Click on the Windows 10 search box and type “Settings”. From the search results, click Settings.
  1. When the Settings window opens, select System.
Fix 100 Disk Usage In Windows 10 By Disabling Notification & Actions
  1. Then, on the left pane of the System page, select Notifications & actions.
  1. After that, uncheck all the boxes on the Notifications & actions page, as shown in the screenshots below.
Fix 100 Disk Usage In Windows 10 By Disabling Notification & Actions

When you are done with that, restart your computer, and the disk usage should be reduced. However, if it didn’t, carry out the second solution below.

Fix 100% Disk Usage in Windows 10 by Performing SFC and DISM Scans

Fix 100 Disk Usage In Windows 10 By Performing SFC And DISM Scans

Performing SFC and DISM scans can sometimes fix 100 disk usage in Windows 10. Hence, to run these scans, follow the steps below.

  1. Click the Windows 10 search box and type “cmd”.
  1. Then, right-click the Command Prompt app from the search result and select Run as administrator.
Fix 100 Disk Usage In Windows 10 By Performing SFC And DISM Scans
  1. After doing that, a User Account Control prompt will appear requesting permission for the app to make changes to your device. Click Yes to continue.
  1. After doing that, input the commands below one after the other to run the scans. However, wait for each scan to complete before inputting another command to run another scan.
SFC /scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Fix 100 Disk Usage In Windows 10 By Performing SFC And DISM Scans

After the scans have been completed, restart your computer, and the issue should be fixed. Nevertheless, if the issue isn’t fixed, the last solution below should fix the problem.

Fix 100% Disk Usage in Windows 10 by Performing a Clean Boot

Clean boot is a process that removes 3rd party applications running in the background of your PC. Hence, performing a clean boot can actually fix the 100% disk usage in Windows 10 issue.

Follow the steps below to perform a clean boot on your Windows 10 computer.

  1. Press the Windows + R keys and type “msconfig”. Then, press OK.
Fix 100 Disk Usage In Windows 10 By Performing A Clean Boot
  1. By doing that, windows will open the System Configuration window, in which the General tab is selected by default.
  1. On the General tab, ensure Selective startup is selected. Also, make sure the Load system services and load startup items boxes are checked.
Fix 100 Disk Usage In Windows 10 By Performing A Clean Boot
  1. After that, switch to the Services tab and check the Hide All Microsoft Services box below.
Fix 100 Disk Usage In Windows 10 By Performing A Clean Boot
  1. Following that, click Disable all.
  1. Then, switch to the Startup tab and click Open Task Manager.
Fix 100 Disk Usage In Windows 10 By Performing A Clean Boot
  1. After doing that, the computer’s Task Manager should open, and the Startup tab will be selected by default. Hence, disable the applications you know you are not using.

    To do so, simply right-click the app and select Disable. After doing that, close the Task Manager window.

  1. Back to the System Configuration window, click Apply, then press the OK button.
  2. Finally, select Restart for the changes to take effect.

Frequently Asked Questions About Fixing 100% Disk Usage in Windows 10

Frequently Asked Questions About Fixing 100 Disk Usage In Windows 10
1. What Is 100% Disk Usage In Windows 10?

A 100% disk usage means that your storage disk usage is maxed out. Hence, your computer’s performance will be degraded.

2. What Is A Third Party Application In Windows 10?

A third-party application is an application that the PC manufacturer or operating system does not provide. These are applications that you download yourself.

Examples of third party applications in Windows 10 are web browsers such as Safari, Firefox, and Opera.

3. Does 100% Disk Usage Slow Down Computer?

Yes, 100% disk usage will cause your computer to slow down. Also, it will cause your computer to lag and sometimes it may become unresponsive.

Hence, your computer might not be able to perform some tasks effectively.

4. How Can I Check The Disk Usage Of My Windows 10 Computer?

To check the disk usage of your Windows 10 computer, follow the steps below.

a) Right-click the Start menu and select Task Manager.
b) After that, switch to the Performance tab. There, you will be able to find the disk usage of your computer.

To learn more about disks usage and how it works in Windows, read What Is Disk In Task Manager: Features, Pros & Cons.

5. What Is The Full Meaning Of SSD?

The full meaning of SSD is Solid State Drive.

My Final Thoughts About Fixing 100% Disk Usage in Windows 10

Having a 100% disk usage can make your Windows 10 computer lag seriously. However, with this guide, you don’t need to worry about that.

Specifically, this guide discussed various solutions to fix 100% disk usage in Windows 10. To give more details, I provided information on how to fix the issue by disabling notifications & actions.

I also demonstrated how to solve the problem by running SFC and DISM scans. Not just that, we also discussed how to fix 100% disk usage in Windows 10 by performing a clean boot.

I hope you found this guide helpful. If you did, we would appreciate you sharing your experience with our community at Itechguides Community.

However, if you have any questions regarding this guide or if the solutions didn’t fix your problem, please post them at Itechguides Community. Our team and some community member will respond to your question as soon as possible.

Finally, for more Windows 10 fix-it guides, visit our Windows 10 Fix-it guides page.

References and Further Reading

  1. answers.microsoft.com – Windows 10 100% Hard Disk usage Fix
  2. answers.microsoft.com – 100% Disk Usage on Windows 10
  3. Itechguides Community

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