This video will show you how to fix high and 100 disk usage in Windows 10. It includes the following:


  1. Disk Usage
  2. Unnecessary Windows Services/Processes
  3. Power Options
  4. HDD / SSD

High / 100 disk usage explained

Most of the time, the solution to 100 Disk Usage is to find a process that frequently uses your hard drive. Then you have to stop that process. If you can’t fix it using our methods, then the problem lies with hardware. One of them should be able to fix the usage problem. But, if your disk usage in the Task Manager continues above 100%, you may need to upgrade. Some antivirus software can lead to high disk usage as well.

You may need a few solutions to solve the problem of 100% hard disk usage. For this, I’ll explain the best solutions for this problem on your computer. Firstly, let’s understand why you’re hitting the high mark. Read below for more information.

Why you’re hitting such a high mark

At times, Windows 10, 8, or 7 users experience slowdowns with their computers. This can have the potential to be the hard drive that’s getting overused. You may notice if you open Task Manager and look at system resources. Disk usage may be at 100%. Your PC will get slower and applications will take longer to work. This is the main reason for switching from older hard drives to solid-state drives.

In a normal state, the disk usage will go up to 100%. But it only stays there for a few seconds. It will lower to an average of about 5% if you’re not using the PC. Noticing high disk usage, you should try restarting the computer. This attempts to resolve the issue. Software reboots solve issues to do with the hard drive at times.

If you have a netbook, or laptop with a limited amount of RAM available, then your system might be utilizing your page file when you use more than 80% of your system’s memory. This slows down the entire Windows experience. It starts dipping into your hard drive for extra memory.

Ways you can fix 100 disk usage in Windows 10

The first thing that you need to do is to launch the disk management console. You can open it by clicking on Start, Run and typing “msconfig” in the field given. Then enter the name of the console into the field given and hit Enter. You will then be shown a window with the results of the command line usage. In this step, you have to make sure that the target disk option is selected and you have clicked on the Disk tab. Follow the further steps below to fix the issue:

  1. Update Windows OS.
  2. Check your hard disk drive for errors by opening a command prompt as administrator and typing in “chkdsk /f /x /r” – Windows will reboot and start checking the disk drive for any errors. This may take a few minutes depending on how big your hard drive is.
  3. Disable the SuperFetch or SysMain service – this service can be disabled and it is known to cause high disk usage in Windows 10 and 8.
  4. Defragment your hard drive.
  5. Check Task Manager for exactly which process is using the most disk space and disable it.
Further reading

You could worry about 100 disk usage exceeding in Windows 10. Wondering why your disk is near or near “100%” and how to lower it. Most users have the same basic idea. There are too many things running that your computer cannot handle. Your Windows process and services can cause this issue. There are many solutions to the problem of high disk usage.

High disk usage indicates an application or a logical problem. It is worth ruling out physical damage. There are a number of ways you can fix it in Windows 10. Disabling BITS (Windows Search) service or a suspicious service can solve this. If your system encounters a 100% disk usage problem, try disabling a service.

At times, Windows defender increases the use of the drive. This leads to high disk usage. Your computer can become slow or freezes. It is likely that you are dealing with a high disk usage computer. If your hard drive is 100% full, there may be a problem with the page file. The page file is used to process computer information while you’re using it.