Is your computer taking ages khổng lồ load programs, websites, & files in Windows 10? If your PC’s disk seems unusually busy, and Task Manager shows high disk usage, you need khổng lồ fix it. Read on khổng lồ learn what pushes Windows 10 to lớn 100% disk usage & how to fix it yourself or with a dedicated cleaning tool.

Bạn đang xem:


Link copied

How to identify the cause of 100% disk usage in Windows 10

The best way to identify why Windows 10 disk usage is at 100% is to lớn consult the Windows Task Manager. The Windows Task Manager utility will show you exactly what’s causing your system to lớn use 100% of your disk capacity — và then you’ll know which issue you need to lớn fix.

Here’s how khổng lồ identify the cause of 100% disk usage with Windows Task Manager:

Right-cliông chồng on the taskbar and select Task Manager.


On the main dashboard, click on the Disk column lớn see all running processes sorted by disk usage.


Make sure the arrow in the Disk column is pointing down. That way, you’ll see the processes with the highest disk usage first.

Look for items that appear orange và consume more than a few megabytes per second. Any process that takes more than 1 to lớn 2 MB is a concern. Depending on the type of disk you’re using, even a small amount of excess disk usage can harm performance.

If your Task Manager reveals something obvious, find the cure below. If you see any of the following items causing high disk usage in Task Manager, clichồng on the links lớn jump down directly to lớn the solution:

If Task Manager doesn"t provide a clear answer, try these other solutions to lớn reduce your disk usage:

If your PC feels slow & if disk usage isn’t an issue, you might instead be suffering from high CPU usage or insufficient RAM.

The 12 best ways to lớn fix 100% disk usage in Windows 10

With Task Manager identifying the processes causing high disk usage, the solution may be straightforward. Here, we’ve sầu compiled the top 12 ways to fix Windows 10 100% disk usage — no matter what’s driving up your disk usage, you’ll be able lớn resolve the issue.

1. Update Windows 10

Microsoft frequently releases Windows 10 updates that fix bugs & plug security holes. These updates should be installed automatically, but if you’ve sầu missed the lakiểm tra release, updating Windows 10 can fix a variety of issues.

To update Windows 10, open the Start thực đơn and cliông chồng Settings. From there, select Updates và Security & initiate the update. Once your PC finishes & restarts, the problem should be fixed.

In some cases, you might see 100% disk usage because Windows is in the middle of updating. Windows replaces tens of thousands of files when updating, so everything else will slow down during the update process. In some cases, Windows may even become unresponsive sầu.

Xem thêm: Đầu Thu Kỹ Thuật Số Trung Quốc Giá Rẻ Nhất, Trung Quốc Thúc Đẩy Tiền Kỹ Thuật Số

Windows updates usually download in the background & install automatically. If your disk usage spikes all of a sudden, Windows may have begun the update process. In such cases, when you navigate to Start > Settings > Updates and Security, you’ll see that the Windows update is in process:

Wait until Windows finishes the installation, and your disk usage should come baông xã down. If you instead see “You’re up to lớn date,” then you need to figure out what else could be causing Windows 10 to lớn reach 100% disk usage.

If Windows 10 is up-to-date, look for another culprit of 100% disk usage

2. Disable Superfetch

Superfetch, or Service Host Superfetch, is a Windows feature introduced in Vista that analyzes your usage patterns, such as when you launch certain applications và how often. Superfetch then preloads data from those programs inlớn your memory. In most cases, this works quite well, especially on older hard disks. But it’s not perfect.

Some users complain that Superfetch causes constant hard disk usage. Gamers especially seem to hate Superfetch because it tends lớn preload the files of a game it thinks you want khổng lồ play, while you’re actually playing a different game. Luckily, you don’t need Superfetch — and there are other ways to speed up your PC.

If your hard disk is full, và if the following thành tích shows up high on the danh mục in Task Manager, you’re dealing with a Superfetch problem.

Disable Superfetch to see if disk usage drops without any decrease in performance — it’s trial & error with this one. To disable Superfetch, press the Windows and R keys at the same time. Type in services.msc.

Hit OK. You’ll see a long danh mục of services that Windows is running. Scroll down until you see SysMain.

Under Startup type, clichồng Disabled và hit OK. Reboot your system & see if performance improves. If not, turn Superfetch back on by completing the same steps — at the over, just select Automatic instead.

3. Remove viruses and malware

Is Task Manager showing you an unknown program with super-high disk usage? It might be a virus, spyware, or other malware. In addition to messing with your PC’s performance, malware can also steal your personal information, corrupt files or apps, and wreak other havoc. Follow our guide lớn get rid of viruses và malware immediately.

To prsự kiện malware infections, learn about the most dangerous current online threats & read our danh sách of the best security và privacy tips.

But there’s no substitute for having svào antivi khuẩn software. Since malware can play a huge role in pushing Windows 10 lớn 100% disk usage, stop whatever you’re doing now & install a không tính tiền antivirut tool. AntiVirus FREE not only provides real-time security updates, it also scans your machine khổng lồ detect malware & performance issues.