🌟 Struggling with 100% Disk Usage on Windows 10/11? Here’s What Worked for Me…
Not long ago, my laptop became incredibly slow, almost to the point of being unusable. I opened Task Manager and saw something concerning: disk usage was stuck at 100% nearly all the time, even when no heavy applications were running.
After some digging and troubleshooting, I found a few practical fixes that finally brought my system back to normal. If you're experiencing the same issue, the following steps might help save you hours of frustration.
🔹 1️⃣ Disable Windows Search (Temporarily or Permanently)
Why this helps:
Windows Search can sometimes aggressively index files, causing excessive disk activity in the background.
To stop it temporarily:
-
Open Command Prompt as Administrator
-
Type the following and press Enter:
To disable it permanently:
-
Press
Win + R
, typeservices.msc
, and hit Enter. -
Find Windows Search in the list.
-
Right-click it → Select Properties.
-
Change the Startup type to Disabled.
-
Click Stop, then click Apply and OK.
🔹 2️⃣ Turn Off SysMain (Previously Known as Superfetch)
Why this helps:
SysMain tries to improve performance by preloading frequently used apps, but it can backfire, especially on older systems, by maxing out disk usage.
Steps to disable it:
-
Press
Win + R
, typeservices.msc
, and press Enter. -
Locate SysMain
-
Right-click → Choose Properties
-
Set Startup type to Disabled
-
Click Stop, then Apply and OK.
🔹 3️⃣ Check for Malware or Background Apps
Why this helps:
Sometimes, unnecessary apps—or worse, malware—run silently in the background, using up disk and CPU resources.
What to do:
-
Press
Ctrl + Shift + Esc
to open Task Manager -
Look under the Processes tab for anything unusual or high in disk usage.
-
Switch to the Startup tab and disable non-essential programs.
-
Run a full scan using a trusted antivirus or antimalware tool.
💡 Conclusion
After trying several different methods, these three simple steps were the most effective in reducing my disk usage and getting my laptop back to working condition. Every system is a little different, so your results may vary, but these solutions are a good place to start.
If you’re currently facing similar performance issues, I recommend giving these a try. They’re safe, easy to follow, and might just save you from a system reset or unnecessary hardware upgrade.
Have any of these tips helped you? Feel free to share your experience in the comments—I’d love to hear what worked for you!