Sure, let’s talk about how to fix 100% disk usage on Windows 11. At a glance, you can tackle this problem by turning off Superfetch, updating your drivers, disabling background apps, and managing your virtual memory settings. These steps will reduce the load on your hard drive, making your PC run smoother.
How to Fix 100% Disk Usage Windows 11
In this section, we’ll walk through various methods to fix the 100% disk usage issue on Windows 11. Each step aims to reduce the workload on your hard drive, improving your system’s performance.
Step 1: Disable Superfetch
Superfetch is a feature that preloads frequently-used apps into memory. Sometimes, it can cause high disk usage.
Type "services.msc" in the Start menu and press Enter to open Services. Scroll down and find "SysMain" (formerly known as Superfetch). Right-click it, select "Properties," and set the Startup type to "Disabled." Then, click "Stop" and hit "OK."
Step 2: Update Your Drivers
Outdated or corrupt drivers can also cause high disk usage.
Open Device Manager by typing it into the Start menu. Expand Disk drives, right-click your hard drive, and select "Update driver." Follow the prompts to complete the update.
Step 3: Disable Background Apps
Background apps can consume system resources even when not in use.
Navigate to Settings > Privacy > Background apps. Turn off the toggle switch for "Let apps run in the background."
Step 4: Adjust Virtual Memory
Virtual memory can be tweaked to reduce disk usage.
Right-click "This PC" and select "Properties." Click on "Advanced system settings," then "Settings" under the Performance section. Go to the "Advanced" tab and click "Change" under Virtual memory. Uncheck "Automatically manage paging file size," select your drive, and set the Initial and Maximum size to recommended values. Click "Set" and "OK."
Step 5: Run Disk Check
A disk check can identify and fix drive errors.
Open Command Prompt as an administrator. Type "chkdsk.exe /f /r" and press Enter. Follow the prompts to schedule a disk check on the next restart.
After completing these steps, your Windows 11 PC should exhibit improved performance, with the disk usage ideally dropping below 100%.
Tips for Fixing 100% Disk Usage Windows 11
- Monitor Task Manager: Keep an eye on Task Manager to identify any specific apps causing high disk usage.
- Regularly Update Windows: Ensure your operating system is up-to-date to benefit from the latest bug fixes and performance improvements.
- Disable Windows Search: Sometimes, Windows Search can cause high disk usage; disabling it can help.
- Use Performance Troubleshooter: Windows has a built-in troubleshooter that can diagnose and fix system performance issues.
- Check for Malware: Run a full system scan to ensure that malware or viruses aren’t causing the issue.
Frequently Asked Questions
Why is my disk usage at 100%?
High disk usage can be caused by various factors including background apps, outdated drivers, malware, or specific Windows features like Superfetch.
Can high disk usage damage my hard drive?
While it won’t necessarily damage the hardware, it can significantly slow down your system and reduce overall performance.
Is it safe to disable Superfetch?
Yes, disabling Superfetch is safe and can help reduce disk usage without negatively impacting system performance.
How often should I update my drivers?
It’s good practice to check for driver updates every few months or when you notice performance issues.
Can adding more RAM help reduce disk usage?
Yes, adding more RAM can reduce the need for virtual memory, thereby lowering disk usage.
Summary
- Step 1: Disable Superfetch
- Step 2: Update Your Drivers
- Step 3: Disable Background Apps
- Step 4: Adjust Virtual Memory
- Step 5: Run Disk Check
Conclusion
Dealing with 100% disk usage on Windows 11 can be incredibly frustrating. But by following these steps, you can tackle the issue head-on and get your PC running smoothly again. From disabling Superfetch to adjusting your virtual memory, these changes are all geared toward reducing the load on your hard drive.
Remember, regular maintenance is key to keeping your system in good shape. Keep your drivers updated, check for malware, and monitor background apps to avoid recurring issues. If you’re still facing problems, it might be worth consulting a professional or looking into more advanced solutions.
Now that you know how to fix 100% disk usage on Windows 11, your computer should feel like it’s had a breath of fresh air. Try these steps and let us know how it goes! If you’re looking for more tips on optimizing your PC, stay tuned for our future articles.

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.