How to Fix 100% Disk Usage in Windows 10

If you are using Windows 10, then you may have faced this error called 100% Disk Usage. If you have noticed slow speed while using your Windows 10, but you have hardly any programs open, something might be causing your hard disk to over-work. The issue occurs because when your computer’s hard disk is continually working at or near 100%, it will not have any spare capacity to carry out different tasks. This slows down everything and can make your computer completely unresponsive. This is not an error, but you have to fix this issue if you are working on multiple projects.

This is a common problem in Windows 10, but fortunately, it is usually not a difficult problem to fix. When it may have many reasons, it is usually caused when the Disk Utilization is at 100% in the Task Manager. In this guide, we are going to share how to Fix 100% Disk Usage in Windows 10. There are many methods to fix this error including disabling the Superfetch, Prefetch and the BITS services also.

If you’re facing such a problem, here are a few troubleshooting steps that may help you solve the matter. High disk usage or 100% disk usage in Windows 10 is very frustrating. Many Windows 10 users are blaming apps like Google Chrome and Skype that trigger some undesirable disk usage on the machine.

Check: Speedup Google Chrome Windows 10

Fix 100% Disk Usage in Windows 10

You need to read the manual given with computer before you get started using it. It is also going to be impacted by the length of time you’ve used the computer previously and how old the true hard drive is. See which operating process is perfect for the slowest old computers which still get the job done.

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First of all, you have to find which service or app is causing 100% Disk Usage on Windows 10. There is a simple way to check using Task Manager.

Step 1: Open Task Manager.

Step 2: In the Processes tab, find % in Disk.

100% disk usage in Windows 10

Method 1: Disable Windows Search

Temporarily disable Windows Search, and see if your computer speeds up. After disabling Windows Search, you cannot search anything in Windows search.

Step 1: Command Prompt as Admin.


Step 2: Type command:

net.exe stop “Windows search”

Step 3: Press Enter.

Disable Windows Search Permanently

Step 1: Open Run > services.msc.

Step 2: Find Windows Search option.

Step 3: Double click > Properties window.

Step 4: Change the Startup Disabled Apply > OK.

Method 2: Disable SuperFetch

Step 1: Open Command Prompt (Admin).

Step 2: Type command > Enter.

net.exe stop superfetch

Step 3: Wait for a few minutes.

Method 3 – Perform a disk check

Step 1: Open Command Prompt (Admin).
Step 2: Type command > Enter.

chkdsk.exe /f /r

Step 3: Type Y to confirm > restart your computer.

Method 4: Disable Antivirus Software temporarily

If you are using Antivirus > disable it temporarily.

Method 5: Update your device drivers

Sometimes outdated drivers are the reason for 100% disk usage problem in Windows 10. So update or download all the required device drivers. Also, download Windows 10 updates.

You can automatically update all your device drivers with many driver tools.

Thanks for reading this complete guide on How to Fix 100% Disk Usage In Windows 10. Share your issues in the comment box.

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