Windows 10

How to Fix 100% Disk Usage in Windows 10

Fix 100% Disk Usage in Windows 10

Most Windows 10 users have been in a position where your computer drags when loading files, websites, and programs. For no apparent reason, your computer seems to be unusually busy and when you go to the Task Manager, you notice it showing high disk usage. The reason your Windows 10 shows 100% disk usage can only mean that something is causing your hard drive to overwork, which makes it slow and almost impossible to use.

The good news is that the 100% disk usage issue in Windows 10 can be easily fixed. This guide will provide you with some fixes that are and have helped solve the 100% disk usage in Windows 10 problem.

Most times, your high disk usage will be the result of numerous issues as there is no one single source for your computer’s inefficiency. Although you are not required to try them all, you can just pick one of the solutions that work for you on your way down the list.

Troubleshoot 100% Disk Usage in Windows 10

Solution 1: Disabling Windows SuperFetch Service

Windows 10 SuperFetch service helps to reduce your system’s booting time thus making essential window’s programs and services boot more efficiently. Despite its advantages, SuperFetch has been identified as a factor causing issues with most disk performances running Windows 8 and later Windows versions, which also includes Windows 10.

To disable SuperFetch in Windows 10, follow these steps:

  1. Press the Windows key on your keyboard
  2. In the search box, type in Command Prompt. The best match, which is an app, will appear at the top. Select the Run as administrator option.
  3. When the User Account Control prompts you, click Yes.
  4. Type in this command when the Command Prompt window appears: net.exe stop superfetch
  5. Press Enter on your keyboard.
  6. If the above command fails, you can type in this command: net.exe stop sysmain
  7. Press Enter on your keyboard.
  8. After some time, check the disk usage of your computer in the Task Manager to see if the problem has been resolved.

Solution 2: Checking Your Windows 10 for a Virus or Malware

A virus or malware infection may cause your Windows 10 disk usage to spike. However, if you have a running antivirus installed, it should be able to identify and resolve the issue.

You may also try forcing the antivirus to run a scan for any potential infection on your hard drive.

Be patient as this may take some time considering your disk is already experiencing high usage and it is crucial to let the antivirus complete the scan to identify and remove any malicious software.

Solution 3: A Malfunctioning Antivirus Software

An antivirus you run on your Windows 10 can cause high disk usage and especially when performing a scan in the background or if it malfunctions and freezes. To see if this may be what is causing the issue, go to the dashboard of your antivirus tool, and check if a scan is what is causing high disk usage. If so, do not interrupt the process. However, if the scan appears to have frozen for some reason, you can restart your system.

Solution 4: Several Active Applications

Having multiple applications not only installed, but also running on your Windows 10 system may cause high disk usage. Although it may be impossible to uninstall these programs since you need and use them frequently, you can try checking for any Windows 10 software/app you rarely use and uninstall it instead.

Solution 5: Updating Windows

In some high disk usage cases, downloading and installing the latest Windows 10 updates ends up resolving the issue. Therefore, checking if your system is up to date would be a good way of ruling out one of the many reasons causing 100% disk usage in Windows 10 as well as improving your system’s overall performance.

To check if your Windows 10 system is up to date, follow the steps below:

  1. Navigate to Settings > Update & Security settings > Windows Update
  2. If there are new updates available, download and install them.

Solution 6: Changing the Energy Options

Changing Windows 10 energy options has fixed several users who have experienced high disk usage. Trying to make the same changes to your system may also resolve this issue.

To change Windows 10 energy options, follow these steps:

  1. Navigate to Power Options > Change plan settings > Change advanced power settings.
  2. From the drop-down menu in the window that pops up, select High-performance and then click on Restore plan defaults and then click on Apply and then on OK in that particular order.
Solution 7: Disable Windows Search

In Windows 10, a known bug may cause a search loop that consequently makes your disk usage spike. You can disable the Windows Search service temporarily and see if it resolves the high disk usage issue.

To do this, follow these steps:

  1. Launch Command Prompt by typing it in the Windows search box and clicking on it to open it.
  2. In the Command window, type in this command script: net.exe stop “Windows search”
  3. Windows search will be stopped until the next time you reboot/restart your computer.

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