How to fix 100% disk usage Windows 10

If your Windows 10 Task Manager shows 100% disk usage, something is causing your hard drive to over-work. Your computer is now so slow it’s almost impossible to use, and you’re probably wondering what you did wrong. The answer is, nothing! This problem can occur all by itself. But the good news is, it’s usually not a hard problem to fix.

How to fix 100% disk usage Windows 10

How to fix 100% disk usage Windows 10

9 fixes for 100% disk usage on Windows 10
  • Disable Windows Search.
  • Disable SuperFetch service.
  • Perform a diskcheck.
  • Reset Virtual Memory.
  • Disable Antivirus Software temporarily.
  • Use Troubleshooting
  • Disable Windows SmartScreen
  • Use CCleaner
  • Upgrade to the latest Windows version

Method 1 : Disable Windows Search

Temporarily disable Windows Search

Windows Search is what makes searching files on your PC much faster. If you don’t use it at all, or you have another search app, you can disable it completely. Disabling this service will stop the indexing of all files. But you will still have access to search, which will take longer time.

Here’s how to temporarily disable Windows Search and find out if it’s the cause of your 100% disk utilization problem. (Note that Windows Search will start again when you restart your computer.)

1) On your keyboard, press the Windows logo key  and X at the same time, then selectCommand Prompt (Admin).

2) Click Yes at the User Account Control window prompt.

3) A mostly black window will then display. This is the command prompt window. In this window, type in the following command:

net.exe stop "Windows search"

4) Hit Enter on your keyboard.

Permanently disable Windows Search

If you discovered that Windows Search is causing your 100% disk usage error in Windows 10, you can permanently disable Windows Search:

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

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

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

4) Check your computer’s disk usage: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

100% disk usage resolved

If the 100% disk usage problem persists, try the next method, below.

 

Method 2 : Disable SuperFetch

SuperFetch helps to decrease boot time and make must-load programs more efficiently. However, it has been identified as a potential cause of disk performance issues in Windows 8 and later versions of Windows, including Windows 10. Here’s how to stop this service:

1) On your keyboard, press Windows key and X at the same time, then choose Command Prompt (Admin).

2) Click Yes at the User Account Control prompt.

3) The command prompt will once again display. Type in the following command:

net.exe stop superfetch

4) Hit Enter on your keyboard.

5) Wait for a few minutes to see if your computer starts performing better. Or check your computer’s disk usage: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

100% disk usage resolved

 

If the 100% disk usage problem persists, try the next method, below.

Method 3 : Perform a disk check

1) On your keyboard, press Windows key and X at the same time, then choose Command Prompt (Admin).

2) Click Yes at the User Account Control prompt.

3) The command prompt will once again display. Type in the following command:

chkdsk.exe /f /r

4) Hit Enter on your keyboard, then type Y to confirm that you’d like to perform the disk check the next time you restart your computer. Please make sure you have closed all of your applications first.

IMPORTANT: Disk check will start the next time you boot your PC and it might take some time to complete (could be a day for some). If, when you restart, you don’t have time to wait for the disk check to complete, you can skip it. You’ll need to reschedule it again, as described above, though.

5) Once you’ve completed the disk check, check your computer’s disk usage again: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

100% disk usage resolved

If the 100% disk usage problem persists, try the next method, below.

Method 4 : Reset Virtual Memory

Virtual memory can be considered an extension of your computer’s physical memory. It’s 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.

To reset virtual memory:

1) On your keyboard, press Windows key and Pause/ Break key at the same time. Then choose Advanced System Settings on the left panel.

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

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

4) Ensure the Automatically manage paging file size for all drives checkbox is NOT ticked. 

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:

  • 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. 

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.

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

8) Check your computer’s disk usage: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. If it’s no longer 100%, you’ve fixed the problem!

100% disk usage resolved

If the 100% disk usage problem persists, try the next method, below.

Method 5 : Disable Antivirus Software temporarily

If you’ve installed antivirus or anti-malware programs such as Norton, Kaspersky, AVG, Avast Behavior Shield or Malwarebytes, you should temporarily turn them off or disable them to see if they’re causing your disk usage problem.

Method 6 : use Troubleshooting

You go to the Control Panel, type Troubleshooting then select System and Security.

System and Security

You click System Maintenance to perform a disk scan operation.

System Maintenace

You select Next / Try Troubleshooting as an administrator and wait for the system to process and press close.

Method 7 : Disable Windows SmartScreen

To turn off this feature, you select Control Panel => Security and Maintenance => Change Windows SmartScreen settings=> Don’t do anything.

Disable Windows SmartScreen

Method 8 : Use CCleaner

This is a completely free software, its task is to scan the junk files that the system generates. If you use this software from 5 to 7 times a day, it makes your computer run smoothly.

Method 9 : Upgrade to the latest Windows version

The remaining errors will be fixed through each update. So, in order to fix Full Disk 100 Win 10 error, you should regularly update the operating system to make the computer run smoothly.

Tag : windows 10 100% disk usage, 100% disk usage windows 10

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How to fix 100% disk usage Windows 10
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