How to Fix 100% Disk Usage in Windows 11 and 10

How to Fix 100% Disk Usage in Windows 11 and 10

Are you facing 100% disk usage in Windows 11 or Windows 10? That means your computer has become stuck and frozen. Isn’t it the same old Windows again? Except you’re running Windows 11 on a brand-new device that you’ve only bought for a few days.

So, what exactly is going on? After further investigation, you discover that your system drive is operating at 100%. Isn’t it obvious that this isn’t the case? Regrettably, this is the case.

The latest versions of Windows have a problem with overworked drives, which causes the operating system to slow down. Hard disk drives (HDDs) and solid-state drives (SSDs) are both affected by this problem (SSDs).

This can be fixed in a number of ways. However, you must first identify the issue.

How to Fix 100% Disk Usage in Windows 11 and 10

How to Fix 100% Disk Usage in Windows 11 and 10?

Only a few culprits were found to be responsible when the 100% disk usage in Windows 11 was first discovered.

Despite the fact that Microsoft has been notified of the 100% disk usage error, more causes of this bug are being discovered, not fewer. To learn how to fix each possible cause of the bug, click the link above.

You have several options once you’ve determined that there is a problem. Check each of the steps below one by one, checking the disk usage in Task Manager after each.

Even if you find a solution, keep in mind that a Windows Update could undo any changes you’ve made. Bookmarking this page will allow you to return to it in the future and repeat the fixes.

Fix 1: Run Disk Check

When trying to use Windows Search to find a file or program, or doing anything else that requires the drive to work, this performance issue is most noticeable (perhaps copying and pasting a group of files).

When your computer next slows down, use Task Manager to run a disk check to see if it’s a problem that’s affecting you. In order to perform a disk check, press Ctrl+Alt+Del and select Task Manager (or right-click the Taskbar and choose Task Manager, or click Ctrl+Shift+Esc).

Keep in mind that this may take a while to open with the drive being under strain. Switch to the Processes tab and look for the Disk column. Further, if you are having problems with the drive performance, you will see 100% disk usage and a red shader that indicated a problem.

As a result, problematic sectors on your hard disk can easily cause 100% disk usage in Windows 11 as well as Windows 10. P

roblem sectors on your HDD can cause the 100% disk usage issue in Windows 10. However, using Windows’ built-in disk check can fix this:

  1. Open Windows Explorer.
  2. Click on This PC.
  3. Next, right-click on C Drive and select Properties followed by Tools.
    How to Fix 100% Disk Usage in Windows 11 and 10
  4. Under Error Checking, click on Check > Scan Drive.
    How to Fix 100% Disk Usage in Windows 11 and 10

Wait while the system scans the drive; a full disk repair may necessitate a reboot. This should take care of the problem.

Fix 2: Update Your Anti-Virus if Windows 11 Disk is Running at 100%

The first step, as with any performance issue, is to make sure your computer isn’t infected with malware. Regardless of whether it’s a free app or a paid suite, your security software should be able to handle this.

Malwarebytes Anti-Malware, for example, should be able to scan your system drive and detect any issues. It’s worth noting that if your drive is already heavily loaded, this may take some time.

If threats are discovered, follow the software’s instructions to remove them and reboot. After that, double-check the performance of your hard drive. Hopefully, you’ve fixed the 100% disk usage in Windows 11. If not, the malware wasn’t to blame, so continue reading.

Fix 3: Disable Windows Search for Improved Disk Performance

The next step is to see if the error of 100% disk usage is related to Windows Search. A bug in Windows 10 causes a “search loop,” which causes the system drive to be overloaded. To stop this from happening during your current session (until Windows is rebooted), do the following:

  1. Right-click on the Start button
  2. Select Windows Terminal (Admin)
    How to Fix 100% Disk Usage in Windows 11 and 10
  3. Type net.exe stop “Windows search”
    How to Fix 100% Disk Usage in Windows 11 and 10

That should take care of the majority of the problems. If nothing changes after rebooting, you can turn off Windows Search and Indexing permanently.

  1. Open the Run dialog box by searching for Run in Windows Search or pressing Win+R together.
  2. Type services.msc and press Enter.
    How to Fix 100% Disk Usage in Windows 11 and 10
  3. In the services window, find Windows Search and double-click on it to open.
  4. Next, in the Windows Search Properties, find Startup type and choose Disabled.
  5. Either way, you can click on Stop to abort the Services.
    How to Fix 100% Disk Usage in Windows 11 and 10
  6. Finally, click OK to save the changes.

Your Windows 11 performance should noticeably improve after disabling Windows Search for a few moments. If not, consider moving on to the next fix.

Fix 4: Disable SysMain to Fix 100% Disk Usage in Windows 11

The superfetch service has also been identified as a possible cause of the 100% disk usage issue in Windows 11 and Windows 10.

This has been renamed to “SysMain” since Windows 10 1809 (the 2018 Windows 10 October Update). To stop this service from causing the disk usage problem, open a new Windows PowerShell (Admin) window and type:

net.exe stop sysmain

Wait a few moments to see if this has had any effect on the performance of your computer. Check Disk in PowerShell is also a good idea:

chkdsk.exe /f /r

You’ll be told that your PC needs to be rebooted for Check Disk to finish, so make sure you’ve closed all of your programs first. If this doesn’t work, you’re probably dealing with a frustrating iteration of this problem that’s easy to fix.

Fix 5: Run the System File Checker

As the name suggests, the system file checker identifies any underlying issue in your operating system and fixes that. Problems that are usually invisible in the layman’s eyes are quite frustrating, but with a system file checker you are covered.

Follow the steps to run the system file checker:

  1. Click on the Windows button.
  2. Search for command prompt.
  3. Right on the command prompt and click on Run as Admin.
  4. Now copy and paste this code
    sfc /scannow
  5. Wait for the SFC to complete its check. Interestingly, it automatically fixes issues it comes across. That means you don’t need to perform any other checks other than this.
  6. Once the check is complete, restart your PC.

Now your 100% disk usage issue would be fixed. In case not, head over to the next fix.

Fix 6: Block Sites from Running Flash

Flash is still one of the most dangerous aspects of modern computing and should be turned off.

Adobe’s multimedia plugin will be retired in 2020, so there’s no reason to keep using it, especially since Flash appears to be one of the most common causes of 100% hard disk usage in Windows 11 when using the Google Chrome browser.

Follow these easy steps to disable Flash in the Google Chrome browser:

  1. Open Menu (three dots upper right corner) followed by Settings and click on Privacy and security
  2. Next, click on Site Settings
  3. Find Flash and set the toggle to Block sites from running Flash
  4. Click Back to confirm, apply the changes by restarting the browser

The next step is to update Chrome to the most recent version. This should happen automatically in most cases, but if it doesn’t, go to Menu > Help > About Google Chrome and wait for the update to finish. Don’t worry if you can’t see any of the options. It simply means that your Chrome version has been updated and does not support Flash anymore.

Fix 7: Make Sure Skype Isn’t Eating Up Resources

Skype, a widely used application, could also be the cause of your 100% disk usage in Windows 11.

Skype is a likely culprit in an era when online collaboration and video meetings are on the rise. It’s a little trickier to deal with Skype now that it’s more tightly integrated with Windows 11. You can, however, disable Skype to see if it’s the source of the problems.

  1. Press Windows + I together to open settings.
  2. Now go to Apps, and click on Installed Apps.
  3. Choose Skype, followed by Advanced options.
  4. After that, scroll down a bit and click on Terminate Now.

Return to the Task Manager to see the difference. If the 100% disk usage bug occurs right after Windows starts, it’s a good idea to turn off Skype’s auto-loading feature.

Change the On/Off switch under Runs at log-in to Off. This screen can also be used to resolve other Skype issues. To assist with troubleshooting, you can Repair, Reset, and even Uninstall Skype.

Fix 8: Resolve PCI-Express Firmware Bug

Since Windows 11 is still in its infant stage, some drivers don’t work as well as they should. The StorAHCI.sys driver, which has a firmware bug, has been discovered to be causing the 100% disk usage issue.

StorAHCI.sys is a storage driver for Advanced Host Controller Interface PCI-Express storage devices connected to a PC or laptop motherboard. To find and fix this problem, follow these easy steps outlined below:

  1. Open the Start menu and search for Device Manager.
  2. Expand IDE ATA/ATAPI Controllers.
  3. Next, double-click the AHCI Controller entry.
  4. In the Driver tab, choose Driver Details.

If the driver is labeled as C:\Windows\system32\DRIVERS\storahci.sys, this bug can affect you. After that:

  1. Close the driver details box
  2. After that, in the Details tab, from the drop-down menu select the Device instance path.
  3. Right-click the value, then Copy.
  4. Launch Notepad and Paste the contents
  5. Next, press Win+R and type regedit, and press Enter.
  6. When alert prompt appears, click on Yes.
  7. In the registry editor, find HKEY_LOCAL_MACHINE\System\ CurrentControlSet\Enum\PCI\ and use the pasted string from Notepad to open the correct AHCI Controller, followed by the random number.

Fix 9: Disable Diagnostic Tracking in Windows 11

How to Fix 100% Disk Usage in Windows 11 and 10

Finally, the impact of diagnostic tracking in Windows 11 should be considered. It has been blamed for 100% disk usage use on many PCs, a feature you might have otherwise disabled for privacy reasons.

When it comes to saving space on your hard drive, it’s easier to simply turn off the DiagTrack service. If this is the cause of the Windows 10 100 percent disk usage error, you can disable the service.

Nevertheless, in order to access diagnostic tracking, you will have to access the command prompt using Administrator mode.

  1. Press Win+R to open the run dialog box.
  2. In the run dialog box, type cmd and press Ctrl+Shift+Enter to open Command Prompt in admin mode.
  3. Now in the command prompt window, type: sc config “DiagTrack” start=disabled and press enter.
  4. In the next line, type: sc stop “DiagTrack”

Fix 10: Windows Update Can Cause 100% Disk Usage in Windows 11 and 10

Windows Update can also be a cause of 100% disk usage problem. This usually occurs only when there is a problem with Windows Update (which is typically due to a file refusing to download). Here you have two choices:

Leave your computer alone: Close all of your open programs and wait. The files will eventually download, but depending on how Windows Update is configured on your computer, you may need to reboot.

Shutdown your PC: After shutting down your PC, restart your computer and wait for Windows Update to fix the problem.

Fix 11: Stop the SuperFetch Service

Another Windows 10 feature that is responsible for 100% disk usage is the SuperFetch service. Although you are using Windows 11, the architecture is the same. So it can be the main underlying issue.

  1. Press Win+R key together. Run dialog box opens
  2. Now type cmd in the box and press Ctrl+Shift+Enter.
  3. In the command prompt window, enter the below command and press enter:
    net.exe stop superfetch

That’s all, now restart your PC and check whether the issue is solved or not. Either way, to disable the Superfetch service permanently, follow the steps mentioned in Fix 4.

Fix 12: Reset Virtual Memory in Windows 11

How to Fix 100% Disk Usage in Windows 11 and 10

Virtual memory treats your disk as if it is RAM and uses it to swap out temporary files when it runs out of actual RAM.

This being a crucial aspect, errors in pagefile.sys can cause 100% disk usage on your Windows 11 PC. Therefore, you can fix this issue by resetting your virtual memory. Follow these simple steps to perform the same.

  1. Click on the Windows button and search: Advanced System Settings.
  2. Now click on Settings under the Performance section.
  3. Again, under the Advanced tab, click on Change button.
  4. Now make sure the box titled Automatically manage paging file size is ticked.
  5. Further, choose No Paging file and click OK.

After following these steps, you will see that the 100% disk usage issue in the task manager on Windows 11 and Windows 10 is fixed. We hope you found this guide helpful.

We hope this guide helped you. If you liked this, don’t forget to check out our other gaming, troubleshooting, and computing guides. Here’s a guide to help you fix missing WiFi option on Windows 11.

Posted by
Johnson Miller

Miller has been a video game journalist for over 3 years, contributing to publications all over the world in his freelance capacity. Magic: The Gathering, Dark Souls, Diablo, and Divinity: Original Sin are some of his favorite games.

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