100% disk usage in windows 10 how to solve it?
It’s a problem 100% disk usage in windows 10 how to solve it ? that’s affected users across Windows 7, 8, and 10, and usually stems from one of a number of background processes, all of which we’ve tried to cover here.
If your Windows 10 system shows 100% disk usage in Task Manager, it can slow down your PC drastically and affect performance. This issue is fairly common, and the good news is — you can fix it. Below is a step-by-step guide to identify and solve the problem.
✅ Quick Check First
- Open Task Manager (Ctrl + Shift + Esc)
- Go to the “Processes” tab
- Click on “Disk” column to sort by usage
See which process is using the most disk. Depending on what you find, try the relevant solution below.
🔧 Top Fixes for 100% Disk Usage in Windows 10
1️⃣ Disable Windows Search (Temporarily & Permanently)
Sometimes Windows Search indexing causes high disk usage.
Temporarily stop it:
net.exe stop “Windows Search”
Run this in Command Prompt as Administrator. Check if disk usage drops.
To disable it permanently:
- Press Win + R → type services.msc → Enter
- Find Windows Search → Double click it
- Change Startup type to Disabled
- Click Stop, then OK
2️⃣ Disable Superfetch (SysMain)
Superfetch (now called SysMain) preloads frequently used apps but can cause issues.
- Open services.msc
- Find SysMain
- Right-click → Stop
- Set Startup type to Disabled
3️⃣ Disable Tips, Tricks & Suggestions
- Go to Settings > System > Notifications & actions
- Turn off “Get tips, tricks, and suggestions as you use Windows”
4️⃣ Update All Drivers (Especially Storage Controller)
- Open Device Manager
- Expand IDE ATA/ATAPI Controllers
- Right-click and update drivers for:
- Standard SATA AHCI Controller
Also update your graphics and chipset drivers from your PC manufacturer’s website.
5️⃣ Check for Malware or Antivirus Conflicts
- Run a full scan using Windows Defender or a trusted antivirus
- Some antivirus software like McAfee or Avast can cause this issue. Try temporarily disabling them to check.
6️⃣ Disable Background Apps
- Settings → Privacy → Background Apps
- Turn off unnecessary apps running in the background
7️⃣ Change Virtual Memory Settings
- Search for Performance → Click “Adjust the appearance and performance of Windows”
- Go to the Advanced tab → Click Change under Virtual Memory
- Uncheck Automatically manage paging file
- Select your system drive → Choose Custom size
- Set:
- Initial Size: 1.5x RAM (e.g., 6,000 MB for 4GB RAM)
- Maximum Size: 3x RAM (e.g., 12,000 MB)
- Click OK → Restart
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8️⃣ Reset or Repair Windows Store Apps
- Go to Settings → Apps
- For apps like Photos, Cortana, or Mail, click on them → Advanced Options → Click Reset
9️⃣ Check for Disk Errors
Run a check using Command Prompt:
chkdsk C: /f /r /x
- This will check for and fix disk errors
- You may be asked to restart your PC
🔟 Disable Connected User Experiences and Telemetry
- services.msc
- Find Connected User Experiences and Telemetry
- Right-click → Stop → Set to Disabled
💡 Extra Tips
- 💽 Upgrade to an SSD: If you’re still using a mechanical HDD, switching to an SSD can eliminate 100% disk usage issues permanently and drastically speed up your PC.
- 🔄 Windows Update Issues: Make sure your system is fully updated, or pause updates temporarily to avoid resource conflicts.
🚀 Summary
| Step | Action |
| 1 | Disable Windows Search & Superfetch |
| 2 | Update Storage Drivers |
| 3 | Adjust Virtual Memory |
| 4 | Run Malware Scan |
| 5 | Check for Disk Errors |
| 6 | Disable Background Apps & Telemetry |
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100% disk usage in windows 10 how to solve it?
Run CheckDisk
The first port of call is to look for corruptions and errors on your hard drive and fix them. The best way to do this is by trying the trusty “chkdsk” tool built into Windows.
1. Click Start, then type cmd , right-click Command Prompt when it appears in the search results, click “Run as administrator” and hit Enter.
2. In the Command Prompt, type chkdsk /f’ /r C: to check for and automatically fix errors on your hard drive. (Replace the “C” with whatever letter you’ve assigned your main Windows hard drive.)
3. You may get a message saying the hard drive is in use and asking if you want to run CheckDisk when the system restarts. Press “Y” and reboot your PC.
4. CheckDisk will run when you reboot your PC. This process may take a while, so be patient. Afterwards, your hard drive should be back in good working order, and your disk usage should be back to normal (around 1-10%).
Disable Windows Services
If that fails, you may need to disable some of those mysterious, cumbersome background services in Windows.
1. Click Start, type services , then hit Enter.
2. In the Services window find the service called “Superfetch,” right-click it, click Stop, then open Task Manager to see if your disk usage has dropped. If not, right-click Superfetch and click Start to get it working again.
3. Try the same thing with the services called “Background Intelligent Transfer Service” and “Windows Search,” right-clicking them in the Services window, clicking Stop, then seeing whether the disk usage drops.
4. If your disk usage drops after stopping either service, you’ll have found your culprit and will want to disable the service permanently. Right-click the service that caused disk usage to drop when it was stopped, click Properties, then in the “Startup type” drop-down click Disabled.
Disable Tips About Windows
Still suffering from the dreaded 100% disk usage? Some people have found that turning off Tips for Windows has helped. Go to “Start -> Settings -> System -> Notification & actions”. Turn off “Show me tips about Windows.”
Change Pagefile Location
The pagefile is a file on your hard drive that eases the strain put on your RAM when doing memory-intensive activities on your computer. If your disk usage is constantly high, it could be because your pagefile is constantly being used to process information on your PC.
One solution would be to buy more RAM. Alternatively, if you have more than one hard drive in your PC, you can easily move the pagefile to a second non-system hard drive. Your main hard drive is always working to keep Windows running, so this will help spread the load:
1. Right-click My Computer or This PC, then click Properties.
2. Go to “Advanced system settings -> Settings (under Performance) -> Advanced ->
Change.”
3. With your default pagefile hard drive highlighted, select “No paging file,” then click Set.
4. Next, select your second hard drive where you want the pagefile to be located, then click “System managed size” -> Set.
5. Click OK and reboot your PC.
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