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Fix: Windows 10 100% disk usage in Task Manager

Updated on Sep 10, 2018 by Brithny to Partition Manager

Read this page to fix Windows 10 100% disk usage in task manager, disk usage running extraordinarily high at the rate of 100%, also solve the system using 100 disk usage error.

Have you ever met this situation: "Your PC ran into a problem that it couldn't handle, and the disk usage is nearly 100 percent"

Just like the picture shows, your windows 10 is at 100% usage. To fix 100% disk usage issue, you must follow the procedure below.

disk usage is up to 100%

Check the Task Manager to find out the cause 

First, we're going to open the task manager and take a look at our disk usages. So as you can see if it is now 100% and is slowing our computer down.

  • Type “task manager” in the Windows search bar and select Task Manager: 
  • In the Processes tab, look at the "disk" process to see what is causing your hard disk 100% usage.

Fix Windows 10 100% disk usage problem

Here are a few repair methods that have helped other users fix their Windows 10 100% disk usage problem. Just simply follow the operation procedures to resolve Windows 10 100% disk usage problem.

Method One. Check Anti-virus Software 

Usually, the virus could be the main cause for loss of situations and 100%  disk usage is no exception. Your security software should be able to deal with this, whether it's a free app or a paid suite. 

At the very least, tools such as BitDefender, Avast, and AVG anti-virus should be able to scan your system drive and detect any problems, although with a heavy load on your drive already this may take a while.

Method Two. Disable Windows Search

There are two ways to disable Windows Search:  temporarily disable Windows Search, and permanently disable Windows Search. 

Temporarily disable Windows Search:

  • Right-clicking the Start button
  • Selecting Command Prompt (Admin)
  • Enter the following: net.exe stop "Windows search"

Permanently disable Windows Search:

Step 1. Press Windows logo key + R at the same time, and type in services.msc. 

type in services.msc to disable Windows search

Step 2. Locate Windows Search option, double-click it to enter its Properties window.

choose windows search option

Step 3. Change the Startup type to Disabled. Then click Apply and OK to save your change. 

click disable to finish 100 percent usage

Method Three. Clear up the Running Memory

Clear up running memory appropriately will low disk usage. Follow the simple steps to solve 100% disk usage problem. First, download the free clear up tool - EaseUS partition magic software, then follow the steps.

Download Now

 Windows 10 is supported

Step 1. Launch EaseUS free partition tool and click "Cleanup and Optimization". Then choose "Junk File Cleanup".

Step 2. Click "Analyze" to let the tool find trash that takes up space on your PC.

find the trash to clear up space

Step 3. Check and choose the trash you want to clear up and then click "Clean up".

Method Four. Reset Virtual Memory

Virtual memory is a combination of RAM and a portion of your hard drive. "When the RAM isn't enough to perform a task, Windows will temporarily store files in virtual memory, then swap them back to RAM when required."

Steps to reset virtual memory:

Step 1. Press Windows key + Pause/ Break key at the same time. Then choose Advanced System Settings on the left panel.

open the interface and choose advanced system setting

Step 2. Go to the Advanced tab, then click Settings. 

click settings in the advaced tab

Step 3. Go to the Advanced tab again, and choose Change in the Virtual memory section. 

choose virtual memory section

Step 4.  Make sure that the Automatically manage paging file size for all drives check box is NOT ticked. 

manage file size to solve 100 percent usage

Step 5. Select your windows drive (the hard drive or partition that has Windows installed on it – usually C:), and enter an Initial size and Maximum size for your virtual memory:

select c drive and change the memosy size

  • Initial size: This value varies, depending on your computer. If you're not sure what value to use, just enter whatever the number is in the Recommended category. 
  • Maximum size: Don't set this value too high. It should be about 1.5 times the size of your physical RAM. e.g. A PC with 4 GB (4096 MB) of RAM should have no more than about 6,144 MB virtual memory (4096 MB x 1.5).

Once you've entered your virtual memory values, click Set, then click OK to continue. 

Step 6. Clear all your computer's 'temp' files. On your keyboard, press Windows key and R at the same time, then in the Run form, type temp and hit Enter. This will invoke Windows Explorer with your Temp folder open, showing you all the temp files on your computer.

clear all the temp files

Step 7. Select all the files in the Temp folder and delete them.

select the temp files and delete them

Method Five. Upgrade Hard Drive

The hard drive that develops too many bad sectors on it would largely send your computer into a loop with a high disk usage.

Or, your computer hard drive might be too old to work properly, even there is plenty of unused space available, still, your computer functions like a turtle and constantly reports 100% disk usage.

It's time to upgrade the hard drive. The EaseUS Partition Master introduced in Method Three can help you replace the hard drive in question with a new one without taking time to reinstall Windows 10. 

This is how you start:

Step 1. Connect the alternative hard disk to the computer (If it is a new hard disk, please initialize it to MBR disk.).

Step 2. Install and launch EaseUS Partition Master.

Download Now

 Windows 10 is supported

Step 3. Select Wizard -> Clone disk wizard from the main menu.

choose clone disk

Step 4. Choose the destination disk - i.e. Disk 2, and then click Next.

choose the new hard disk

* If there are some partitions on the destination disk, please confirm to delete the partitions and data on the destination disk. Click Next.

Step 5. Resize partitions on the destination disk. Position the mouse pointer on the left or right partition handle. The mouse pointer changes to a double-headed arrow and please drag the handle to the partition size you want. Click OK.

edit the new hard disk after clone

Step 6. To preview the result on the left panel Pending Operations. If it is right, then click Apply. Tick Shut down the computer after changes are applied.

shut down the computer after applying changes

Step 7. Please replace the source disk with destination disk and then boot the computer.

Is the 100% disk usage issue slowing down your Windows 8.x or Windows 10 computer? Have any of these methods fixed the problem? Tell me and let's see if we can get it resolved.