How do I fix 100 disk usage?

10 ways: 100% disk usage in Windows 10 [MiniTool]

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Recently, many users have reported that their hard drive usage is 100%, which causes the system to slow down or even stop responding. In this article you can find out how to fix the "100% disk usage" problem.

Recently, more and more Windows 10 users are reporting that they encountered the 100% disk usage issue. Here's a question from Windows 10 users at

100% disk usage for no apparent reason
For a few months now I have had the problem that my PC often hangs for a few seconds to minutes. It seems to be because the disk is 100% busy as the Task Manager shows me. However, less than one MB / s is usually displayed overall for the various programs. Even the resource monitor shows no more than a few MB / s. I have a 1TB HDD hard drive. If you need any further information, just say so.
EDIT: My internet is not great and crashes a lot. The full disk usage seems to occur most of the time when the LAN does not work again.


How can you see the disk usage 100% amounts. How can you find out that you have the "100% disk usage" problem? In Task manager, under the tab Processes and power you can see the disk usage 100 amounts. The system will remain frozen until the disk usage decreases from 100%. This can be seen in the following screenshot:

In addition, the system event log contains numerous events with Event ID 129 that represent the hard disk controller resets.

Are you bothered by the 100% disk usage in Windows? In the next part, we will show you solutions against hard drive stress in Windows 10 that are worth trying.

Recommended Article: You may also be interested in: 3 solutions to help you get out of the “Out of disk space in Windows 7 / 8.1 / 10” warning.

10 solutions to 100% disk usage on Windows Task Manager

Video tutorial

Solution 1 - Repair your StorAHCLsys Driver

According to Microsoft support, the ID 129 events, which are hard disk controller resets, can be caused by a variety of factors. One of them is that some Advanced Host Controller Interface PCI-Express (AHCI PCIe) modes cause this symptom in Windows 10 when running with the StorAHCI.sys driver input.

Due to a firmware error, the solid-state driver (SSD) does not terminate the input / output properly when the MSI mode (Message Signaled Interrupt) is activated. Therefore, the Windows memory stack tries to reset the device after waiting for the unresponsive read / write process for some time.

Therefore, the first solution to remedy "Disk 100% load Windows 10" is to deactivate the MDI mode through the register. Follow the instructions as follows:

First part: Determine whether you are running the incoming driver AHCI (StorAHCLsys)

Step 1. Press "Win + R“So that the Execution dialog is called. Give "devmgmt.msc“And press Enter.

Step 2. Under "IDE ATA / ATAPI controller" click on "Standard SATA AHCI controller"With the right mouse button and select"properties

Step 3. Under the tab "driver" the option "Driver details", If you "storahci.sys"On the list, run the input driver.

Second part: Deactivate MSI for the controller in the register

Step 1. In the same properties window select under the tab "Details" the option "Device instance path" of the "property“Selection menu. Please note the value given by PCI \ VEN starts, which is very useful in the third step.

Step 2: Open the registry editor by entering "regedit“On the same Execution dialog.

Step 3: Navigate to "HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Enum \ PCI \ \ Device Parameters \ Interrupt Management \ MessageSignaledInterruptProperties“Where <AHCI controller> refers to the device instance path mentioned in step 1. Then change the value of the MSISupported key from "1" to "0".

Restart the computer and check if it works for your computer.

Solution 2 - Change energy options from “Balanced” to “High Performance”

According to the feedback from those affected, changing the power options from "Balanced" to "High performance" works well in this case, ie at 100% disk usage in Windows 10. Details are as follows:

Choose Energy options > Edit power plan> Change advanced power settings, choose "High performance"From the selection menu and make sure that all of the schedule settings are as default. Here we go!

Solution 3 - change settings in Google Chrome and Skype

A lot of users also recommend changing the settings in Google Chrome and Skype. For some unknown reason, a special connection between the Skype and Google Chrome settings could lead to the "Hard disk usage 100%" problem in Windows. Here are the procedures for correcting these settings:

Step 1: Go to “Settings” in Google Chrome.

Step 2: Scroll down this window and click on "Advanced".

Step 3: Under the category "Data protection and security", Make sure that the option"Use prediction function to load pages faster“Is deactivated. Also make sure that the option "Run apps in the background when Google Chrome is closed"Under the category"system“Is also deactivated.

Step 4: Make sure that your Skype is closed in the task bar.

Step 5: Open your Windows Explorer and open "C: \ Program Files (x86) \ Skype \ Phone

Step 6: Click with the right mouse button on "Skype.exe"And select"property“From the context menu. Then open the tab "security"And select"To edit…

Step 7: Select "ALL APPLICATION PACKAGES"And then click the option"Write" at. Finally click on "Take" and "OK", then again "OK"To save the changes.

Now check in Task Manager whether the "high disk usage" problem in Windows 10 has been resolved. If not, uninstall Skype and update Chrome to V64 or more.

Solution 4 - disable Windows Search

Windows Search makes it possible to quickly find files on your PC. If you're not using it at all, you can turn it off completely. Deactivating Windows Search stops indexing all files. However, we recommend that you temporarily disable Windows Search first to determine whether this is the cause of your "100% disk usage" problem.

First part: temporarily deactivate Windows Search

Note: Windows Search will start again when you restart your computer. Therefore, this change does not affect your computer performance.

Step 1: Press the keyboard combination "Win + X" and select the option "Command prompt (administrator)". Then authorize his user account control.

Step 2: Enter "net stop WSearch"In the command prompt window and press Enter key.

Check to see if your hard drive usage and your computer's performance are improving. If so, you should permanently disable Windows Search. The procedure is described below.

Second part: Deactivate Windows Search permanently

Step 1. Press the keyboard combination "Win + R"To call up the execution dialog. Then enter "services.msc“And press Enter.

Step 2. Find "Windows Search“And open the settings dialog with a double click.

Step 3. Change the Start typeoption to "Disabled", click "Apply" and then "OK" to save your change.

Verify that this method works to resolve Disk 100% Usage problem.

Solution 5. Disable the SuperFetch service host

Service host SuperFetch helps reduce boot time and improve the efficiency of the programs that need to be loaded. However, it is seen as a possible cause of high disk usage in Windows. Here is how to stop this service:

Step 1: Press the keyboard combination "Win + X" and select the option "Command prompt (administrator)". Then authorize his user account control.

Step 2: Enter "net stop superfetch"In the command prompt window and press Enter key.

Please wait patiently for a while and then see if your computer performance improves on startup.

Solution 6 - disable antivirus program

If you have some antivirus or anti-malware programs installed on your computer, you can turn them off temporarily so that you can determine if they are causing your 100 percent disk usage problem. If your computer's occupancy status normalizes, you may want to contact the provider of this software.

If this provider can't offer you any help, then don't worry. Microsoft has its own standard anti-malware called Windows Defender. It is activated automatically whether you install other antivirus programs or not. That's why Windows Defender is always there, even if you disable the programs you installed yourself.

Solution 7 - Uninstall any Flash Player update

Uninstalling any Flash Player update is also considered to be a good solution that will help many users resolve this "Disk usage 100% Windows 10" problem. The steps are as follows:

Open Settings> Update & Security> Windows Update> View Update History> Uninstall Update. Then uninstall the Flash Player update.

Solution 8 - reset virtual memory

Virtual memory is a part of your hard drive and is seen as an extension of the physical storage space on your computer. If there is insufficient RAM to carry out a task, Windows temporarily saves the files in virtual memory and swaps them back to RAM if necessary. Improper virtual memory could cause high disk usage in Windows 10.

Here is the procedure on how to reset the virtual memory.

Step 1. Press "Win + E“To open Windows Explorer. Switch to the category "This pc", Right click on it and select"Settings". Then choose "Advanced system settings“In the left pane.

Step 2. Click "Settings"Under the tab"Extended“.

Step 3. Select the “Change” option under the “Advanced” tab in the “Virtual memory” area.

Step 4. Make sure that the option "Automatically manage paging file size for all drives“Is not checked. Then raise yours System drive and define the Initial size and the maximum size for your virtual memory.

Tip: (1) Initial size: This value depends on your computer. If you're not sure which number to enter, just enter the recommended number.
(2) maximum size: We recommend that you set this value to 1.5 times your physical memory. If your PC has 4 GB (4096 MB) of RAM, this should be more than approximately 6.144 MB (4096 MB x 1.5).

Then click on "Set" and then on "Ok" to continue.

Step 5. Now is the time to clean up all of the temporary files on your PC. Press "Win + R" to open the execution dialog. Then type in "temp" and hit Enter. This is how Windows Explorer will refer to the folder for temporary files.

Step 6. Select and delete all files in this folder.

Please wait a while and see if Windows 10 100 Disk Usage is repaired.

Solution 9 - disable Windows Update Service

Some users suggest that Windows Update Service could also be a reason for "100 Disk Usage Windows 10". You can disable it first and then check.

Step 1. Run “services.msc” and press “OK”.

Step 2. Scroll down, find “Windows Update” and double-click on it.

Step 3. Select “Disabled” from the Startup Type drop-down menu in the pop-up window. Then press “Quit”, “Apply” and “OK” one after the other.

For more information, please read "How to disable Windows 10 Update".

Solution 10 - change options in Explorer

Step 1. Open Explorer and click "Options"Under the tab"view“.

Step 2. Deactivate the following two options under the tab "Search

  1. Include compressed files (.ZIP, CAB, etc.)
  2. Always search for file names and contents (this process may take a few minutes)

Step 3. Click on "take“ &  „OK“.

Other solutions that are also worth trying.

If you've read this far, I'd like to offer you a few more suggestions that some users have found successfully overcoming their 100% disk usage problem.

  1. Get Adobe Creative Cloud and Photoshop CC. You may need to enable these first before you can uninstall them.
  2. Uninstall the device drive and restart the PC.
  3. Intel Rapid Start TechnologyDeactivate “in BIOS.

If all of the above solutions can't help you, read on Solution 11 and Solution 12.

Solution 11- Check the disk

If all the solutions mentioned above cannot help you, then it is necessary to check your hard drive. You can do it with the help of the free partition manager, which simplifies the process with a few clicks. This tool allows you to manage disks and partitions under different aspects even though you are not a professional. Download and install MiniTool Partition Wizard on your computer.

Free download

Step 1. On the main MiniTool Partition Wizard interface, select the system partition from the drive map and select “Check file system“From the scope of action.

Step 2. Select "Check & correct detected errors"And click on"Start“.

Continue checking and correcting the remaining drives. If no errors are found, you can try solution 12.

Solution 12 - Clean up the SSD and reinstall Windows 10

Your last resort is to completely wipe your hard drive and reinstall Windows. You can completely back up the SSD, prepare installation media for Windows 10, and perform a fresh installation.

First part. Prepare an installation medium for Windows 10.

Download a new ISO from Microsoft, burn it to a memory stick, and later you can use it to reinstall Windows 10.

Second part. Secure SSD

It is necessary to backup the hard drive with Windows 10. On the one hand, all important data is guaranteed.On the other hand, you are able to reset your Windows to the previous version without reinstalling the system and the applications if a new installation does not work.

You can also do this task with MiniTool Partition Wizard Free.

Free download

Step 1. Select the system disk as the source disk on the main interface of MiniTool Partition Wizard Free and choose “Copy disk“From the menu.

Step 2. Choose another hard drive as the target disk.

Warning: You should note that all data on the target disk will be destroyed because it will be formatted first when copied.

Step 3. On the next page, you can see some copy options. Pick a few as per your need and move on.

Step 4. When you see the message “Boot from the target disk”, read carefully and click “To lock“.

Step 5. Finally, click “Apply” and your entire disk will be copied.

Third part. Reinstall Windows 10

Connect the prepared memory stick to the computer and follow the instructions for installation. When you see “Where do you want to install Windows,” select each partition and delete it. Then choose the unallocated space to reinstall Windows.

Now you can check if the high disk usage has been reduced in Windows 10. If not, replace this hard drive with the backup copy and see if the drive's performance has improved. (If so, the original disk may be faulty.)

Here are 10 solutions to 100% disk usage Windows 10. I tried the second one and it works fine! You should definitely try this one! ”Click to tweet

Best recommendation: You may also be interested in: Solved - Windows Backup Insufficient Disk Space with Error Code 0x80780119.

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Now I've explained all eleven solutions to you. You can try these one at a time and see if these solutions can help you with the 100% disk usage problem. I hope you are helpful. If you have any questions or suggestions on this subject, please feel free to leave us a comment. You can also send us an email at [email protected]. We read every email carefully!

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PennyFollow us

Position: Columnist

She joined the MiniTool family in 2018. After that, she focuses on data recovery and disk management. Over the two years she has written many good posts and helped users get out of their data recovery and computer management problems.

In addition to knowledge of computer tricks, she is also interested in foreign languages, especially Japanese and Korean. She also likes animated films and feature films very much. "Good morning ... Oh, and if we don't see each other, good afternoon, good evening and good night!" Is her favorite movie quote.