disk usage in Windows how to fix 100% disk usage in Windows

How to fix 100% disk usage in Windows 10/11 [ Solved ]

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Due to 100% disk usage, Windows occasionally freezes. To fix 100% disk usage is due to several reasons. It is inconvenient and upsetting when the system freezes. Let’s look at the easiest way to fix 100% disk usage in Windows.

How to fix 100% disk usage in Windows

After some time of usage, the system requires numerous process and services to function properly. As a result the system lags and freezes.It’s really simple and straightforward to fix 100% disk usage in Windows. Let’s examine each one in turn.

Update Windows 10/11

Microsoft provides Windows 10 updates regularly to correct bugs and plug security issues. These updates should be installed automatically, but if you don’t have the most recent version, updating Windows 10 can help you fix a range of problems.
  • To update Windows 10, open the Start menu
  • click Settings.
  • select Updates and Security and initiate the update.
  • Once your PC finishes and restarts, the problem should be fixed.

Remove viruses and malware

Computers become slow and freeze as a result of viruses and malware. Removing viruses with effective antivirus software and malware with effective antimalware software makes your computer fast.

Close background applications

We had opened a ton of applications while using Windows for a while. Many of these programs operate in the background. Closing background programs causes the system to terminate numerous dependant processes, which makes the computer faster and eliminates the possibility of freezing.

Delete temporary files

The system generates numerous temporary files that are saved in the system after a certain number of days of use. By removing temporary files, the system becomes less sluggish and is less likely to freeze.

To Clear temp file :-

  • Open Run type temp
  • click enter,it will open temp folder’s file
  • Select All and Delete

Update drivers

Everything becomes a jumble when the software and drivers are outdated. As a result, the system frequently runs slowly and jerkily, so updating drivers and software is a good idea for a smooth operation.

Low memory and high usage RAM

The computer begins to slow down and freeze when the system’s memory is low and use is high. Increasing RAM will address this issue because many modern applications need sufficient RAM to run smoothly.

Restart Your System

Many computer issues can be resolved by restarting the system or rebooting. As a result, a large number of processes end, speeding up systems.Hence,fix 100% disk usage in Windows.

Run Check Disk

CHKDSK will scan for drive errors and let you know if it finds any you should repair. It tries to fix a boot error that occurred.

  • Type cmd (Command Prompt) in the Start menu search bar, 
  • Click Run as administrator.
  • Type chkdsk and hit Enter

For example, to repair the D drive, enter chkdsk D: /f.

Change Settings in Google Chrome

The following settings need to be changed because Google Chrome is notorious for consuming a lot of RAM:

  • Settings -> Show advanced settings.
  • Under Privacy section, uncheck the “Use a prediction service to load pages more quickly” option.
  • You should also try disabling Flash in Google Chrome.
fix 100% disk usage

Disable SuperFetch

SuperFetch speeds up programs that must be loaded and reduces startup time. It has been noted as a possible reason for disk performance concerns in Windows 8 and later Windows versions, including Windows 10. Here is how to terminate this service:

  • On your keyboard, press Windows logo key, type command prompt, then select Run as administrator.
  • Click Yes at the User Account Control prompt. 
  • The command prompt will once again display.
  • Type in the following command: net.exe stop superfetch
  • Hit Enter on your keyboard. 

Migrate HDD to SSD

In comparison to SSD, HDD is outdated and slow. By enabling a quick and seamless boot-up, switching to SSD will improve system performance.This will answer “How to fix 100% disk usage in Windows”.

Disable Antivirus Software temporarily

There are numerous process and services that antivirus software needs to run. The system becomes sluggish and jerky as a result. Therefore, momentarily turning off antivirus makes the system operate flawlessly.

The best way to fix 100% disk usage in Windows 11

If you’re experiencing 100% disk usage on your Windows 11 system, there are several effective methods to address this issue. Let’s explore How to fix 100% disk usage in Windows some tried-and-tested solutions:

  1. Disable SysMain (Superfetch) Service:

    • SysMain (formerly known as Superfetch) preloads apps into memory before you launch them, aiming to speed up program loading. However, it can sometimes cause high disk usage. To disable it:
      • Press Windows + R to open the Run prompt.
      • Type services.msc and hit Enter.
      • Look for “SysMain” or “Superfetch,” double-click it, set the Startup type to “Disabled,” and click “Stop” to halt the service1.
  2. Check for Viruses/Malware:

    • Run a thorough scan using reliable antivirus software to ensure your system is clean.
  3. Update Storage Drivers:

    • Outdated or incompatible storage drivers can lead to disk issues. Visit your laptop manufacturer’s website or use Windows Update to get the latest drivers.
  4. Increase Virtual Memory:

    • Adjust your virtual memory (page file) settings to improve performance. You can find this in the System Properties > Advanced > Performance Settings > Advanced > Virtual memory.
  5. Disable Startup Apps:

    • Some apps launch during startup and contribute to disk usage. Disable unnecessary startup programs via Task Manager.
  6. Perform a Clean Boot:

    • Temporarily disable non-essential services and startup items to identify any conflicting software.
  7. Update Windows 11:

    • Ensure your system is running the latest Windows updates. These often include bug fixes and performance improvements.
  8. Replace HDD with an SSD:

Remember to try these steps one by one and monitor the impact on disk usage. Hopefully, one of these solutions will help resolve the issue!


Multiple factors must be addressed in order to fix 100% disk usage. The system freezing causes inconvenience and distress.Numerous procedures and services are needed for the system to operate correctly.  How to fix 100% disk usage in Windows can be addressed quite easily and quickly as mentioned above.

We might not be able to pinpoint exactly where the disk utilization issue originates. There may be more than one explanation for the issue, but we will be thorough enough to rule out all possibilities from our end in order to avoid a 100% disk utilization issue.


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