How to Resolve 100% High Disk Usage


Getting this issue on pc is a bit tricky. High disk usage can be caused by FIVE different things: Virus Infection, Hard Failure & Compatibility Issues, Application Conflicts or Application Usage, Operating System Issue and Lastly Operating System can't be handled by the hardware.

There are also different 100% high disk usage scenario:

1. While browsing or using an application/s.

2. After PC Start-up but then go back to normal usage.

3. You are not doing anything but you received the 100% high disk usage.


Windows 10 is an improved and enhanced operating system (and still improving). There are added features like; Settings, Windows Store, GameMode, Apps, FastBoot (Disabling the F8 Option), Xbox App, Edge, TV's and Movie App, Groove Music, Windows Defender, Enhanced Security, Multi-Desktop Feature, Tablet Mode, Flight Mode, & more. To sum it up there are a lot of process and system task needs to accomplish these things (Anti-malware is one of those).

Before anything else:

1. Make Sure that your Windows 10 has the latest verion and build.

a. Use this link to identify your PC's current version and build:

b. Check the latest version and build of Windows 10 in this link:

Note: If your windows 10 has not installed the latest version and build, perform and in-place upgrade for the easiest way to update your PC. Use this link on how to do so:

2. Make sure that you have the latest Driver update for Windows 10.

Check this link on how to update your drivers:

3. Make sure that your Windows meet the System requirements for Windows 10 and also check if your PC is supported and tested to run Windows 10.

a. Check this link for System Requirements:

b. Use the link below to see if your PC is tested for Windows 10:








4. Make Sure that you have already Run a Windows Defender Offline in Full Scan.

Check the link below on how to run it.

5. Check the situation in a minimal driver or services running.

Perform Clean Boot to check if there are third party services causing issue. Use this link:

Check if there are driver conflicts by going to safemode:

6. Are there hardware causing this issue?

Here's how you can check if there are hard drive issues:

Is this caused by memory leak? Use this link on how to do so:

Did it happened recently? Use System Restore:

Different Scenario and Resolution

1. While browsing or using an application/s.

Two (2) major culprits are Google Chrome & Skype. Use this link:

100% high disk usage can also come from Apps / Games (due to compatibility issue). Check on this link if your game is tested for Windows 10.

2. After PC Start-up but then go back to normal usage.

Check if you have any Start-up Task use auto run to do so:

Check your apps if it is set to auto start-up:

3. You are not doing anything but you received the 100% high disk usage.

If your operating system came pre-installed on your device consider System Reset:

And dont forget about performing Clean Installation:

But if your Operating System came from upgrade path consider going back to previous operating system. Let me give you a direct link for Windows 7 & 8.1. (Do not use Windows 8. It is not supported by Microsoft Answer Desk Anymore. So don't expect support for this operating system).

Make sure that you have a valid Windows 7 & 8.1 Retail Product key. If you don't have one, you can buy it from a third party store (Microsoft Store do not sell Windows 7 & 8.1 anymore)

Windows 7 Direct Download Link:

Home Premium

32 Bit:

64 Bit:


32 Bit:

64 Bit:


32 Bit:

64 Bit:

Windows 8.1 Direct Download Link:



32 Bit:

64 Bit:

I want to Try Something Else

If you still want to try something else. You can do the following at your own risk.

1. Increase Virtual Memory

2. Disabling Disk Defrag

Open Task Scheduler -> Microsoft -> Windows -> Defrag

3. Disabling SuperFetch Service

4. Disabling PreFetch Service


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Discussion Info

Last updated May 26, 2021 Views 6,136 Applies to: