Windows and Office 365

Fix 100% Disk Usage Problem on Windows 10

100% Disk Usage

It is very common for Windows 10 users to encounter a 100% disk usage problem. It has occurred to most of us that our computers slow down or become slow due to 100% disk usage.

There might be an issue in your system that might slow down your system performance or make your system unstable. One of the common issues might be due to your files system or even due to the hard disk performance.

What is 100% Disk Usage?

Disk Usage or the Hard Disk Usage is simply the percentage of disk space that is occupied by the system files (including documents, pictures, videos, music files, etc) and other applications and files.

When the disk usage is 100% in Windows OS, it means that all the space of a disk is being occupied by the system files, other system folders, and other installed applications and files. When the disk is fully filled, this means that there is no space left to store or run any more program files.

Read on to learn how to fix this issue.

Methods to fix 100% Disk Usage Issue

Run a system file checker to verify the integrity of Windows system files on your computer, making sure that there are no corrupted files on your Windows.

Perform SFC Scan and Repair Windows Image

This process will perform a scan for any corrupted system files or integrity violations and will attempt to repair them along with the Windows Image.

1. Open the command prompt with administrator access
2. Type each command below and wait until the scan is completed.

SFC /scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

Quick note: While the command is running, it’s expected to see the process stuck at 20 or 40 per cent. After a few minutes, the process will complete successfully.

Once you complete the steps, the Deployment Image Servicing and Management tool will connect to the Windows Update servers to download and replace any damaged files in the local image for Windows 10 as necessary.

3. Close the command prompt.

After the scan completes, kindly check for available updates on your computer

Press the Windows key + I
Click on Updates and Security
Click on Check for Updates
Wait until Windows fetches all available updates and installs them on your computer.

After the updates are complete, restart the computer for the changes to take effect.

After restart, kindly perform clean boot on your computer

Perform Clean Boot

This process will eliminate 3rd party applications running in the background of your computer along with services that are not needed to run windows. If there’s any conflicting 3rd party application that causes the issue on your computer, this process will stop it.

1. Open the run box by pressing the Windows Key + R, and type MSConfig
2. System Configuration Utility box will open and by default, you are on the general tab.
3. On the General tab, click the Selective startup and make sure that load system service and load startup items both have checked marks.
4. Click on the services tab
5. Put a check mark on Hide All Microsoft Services > This is a very important part as if you miss to click on this, the computer might not boot properly or permanently and will end up on clean installation.
6. Once Hide all Microsoft Services have checked mark on it, click on Disable All
7. Click on the Startup Tab and click open task manager. This will open another window that contains all your startup applications on the administrator account.
8. Disable all application that you’re not using. You can simply just click on them and select disable.
9. Click OK , Apply and close the configuration utility

Restart the computer again and check if the same issue appears

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Raj Maurya

Raj Maurya is the founder of Digital Gyan. He is a technical content writer on Fiverr and When not working, he plays Valorant.

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