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It is quite common for the Windows 10 users to face this issue, and it can lead their device to hang and freeze from time to time, interrupting all the essential tasks for the day. Every device has its downside, and Windows 10 is one of them. So, the reason for why you see 100% disk storage could be the Windows 10 OS only, instead of all the space your photos, files, etc. are consuming. Its operating system slows down the desktop and affects HDD and SSD in the long run. There are a few bugs in the OS that prompts it to behave this way.

Fortunately, one can resolve these issues manually, but you must know that the most common culprit for introducing these bugs is the latest update you installed on your device. So, we recommend you to check all settings and previous fixes before proceeding for the update as it can reverse the settings. To fix this issue, use the following methods:

Virtual Memory Setting

Virtual memory refers to the combination of RAM and hard disk space, and it can lead to the overuse of your HDD. When your RAM runs out of space to perform tasks, HDD takes its place to keep your work going. When required, the tasks can shift from the HDD to RAM.

Follow the steps below to reset the virtual memory to recover the performance speed:

  1. Open the System screen with Windows + Break or Pause keys. From the left panel, click on Advanced System Settings.
  2. A dialog box will open. Click on the Advanced tab.
  3. From the new menu, click on Settings. It will bring you to another Advanced tab named as Virtual Memory.
  4. Click on the Change button and remove the tick mark from Automatically Manage Paging File Size for All Drives.
  5. From the current screen, select Windows drive and click on Custom Size. Add an initial size and a maximum size in MB. Remember, the maximum value should not be more than 1.5 times your system’s RAM.
  6. After inserting the values, click on Set and OK to continue.
  7. Clear all the temporary files which include all the data used in the previous virtual memory allocation.
  8. For clearing the files, press Win + R keys together, and enter the “temp” command. From the directory, select all the data and hit the Delete button on your keyboard.

High-Performance Mode

Tweaking the Windows Power settings can make a difference because the Standard power modes are more likely to bring 100% disk usage bugs. So, the best option is to switch to the High-Performance Mode, but it may lead to more battery consumption. To make changes, follow these steps:

  1. Press Win + X keys to open the Power & Sleep screen.
  2. Go to the Power Options.
  3. Click on Additional Power Settings.
  4. Select High Performance under the ‘Create a Power Plan’ dialog box, and hit the OK to save the settings.

If you don’t see the options, then you need to create a custom plan. To do this follows the below-mentioned steps:

  1. Click on Create a Power Plan and select High Performance.
  2. Add a name for the plan and make settings as per your preferences.

In a few minutes, the ‘100% disk usage’ issue will be resolved.

Install SATA Drivers

Windows 10 uses SATA drivers to connect to HDD and SSD, and an un-updated SATA driver can result in the ‘100% disk usage’ issue on your desktop. Follow these steps to resolve or prevent this issue:

  1. Press the Win + X keys to open the Power User menu.
  2. Select Driver Manager and click on Storage Controllers.
  3. Select the appropriate controller for your SATA devices. If you’re unsure about this step, then give a right-click on each controller and select Update driver.
  4. Select the Browse My Computer for Driver Software option, and select Let Me Pick from a List of Available Drivers On My Computer.
  5. From the new set of options, select Standard AHCI Controller and check if there is any change in the performance.
  6. If you don’t find any changes, reboot your desktop to apply the settings you made.

If none of the above-mentioned methods works for you, then your drive could be the reason for the recurring issue. Perhaps, it is damaged, defective, or too old to perform the tasks. Or, the problem could be related to the Windows defrag tool, and in this case, you have to disable the scheduled disk defrag tasks from the Task Scheduler menu.

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Ava Williams is a Norton product expert and has been working in the technology industry since 2002. As a technical expert, Ava has written technical blogs, manuals, white papers, and reviews for many websites such as

marierobert Aug 24 '20 · Tags: windows 10, disk usage

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