100% Disk Usage on Windows 8.1

Hello, I'm Leo

I would like to address the problem with windows 8.1, i find that with updating Windows from Windows 8 to 8.1 causes a very concerning problem.

the problem causes the disk usage as show in the task manger to be 100%.

The problem with 100% disk usage causes some problems like:

- Slows Down Computer

- Ruins Hard Drive (Over Long term use without FIX)

I've tried to fix it many times, i have used many methods like: 

- Running Command Prompt

- Scanning my Files and Hard Drives

- Restore my PC to Factory Settings

non of these worked and now i have read the post of where u run "services.msc" and disable few services like "Superfetch" or "Windows Services" but i realize that this is not a fix and that when windows tells you to do this it only to make it look like your disk it not 100%, my computer still runs pretty slow (Got my Laptop 3 months ago) and i have not downloaded any third party software cause my network is always at 0% when i have 100% Disk usage.


Windows 8.1 is the cause of the 100% Disk Usage. Windows 8.1 has a lot more background programs running than windows 8 did this change has caused windows to use up 100% of the disk space

I need help i need someone to help fix this problem

Ps all my files and programs are up to date including my BIOS 



Hi Joel,


Try the following methods and check if it resolves the issue.


Method 1:

Step 1: Try Safe Mode

Safe mode is the configuration of Windows, when it is running on only basic set of drivers and all the startups are disabled. To know more about safe mode, follow the article below:




If the issue is resolved in safe mode, follow step 2 after restarting the computer in regular mode.


Step 2: Clean Boot

A clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows. To know more, follow the article below:




Note: After troubleshooting, refer to this section ‘How to reset the computer to start normally after clean boot troubleshooting’.


Method 2: Run a Virus Scan

I would recommend you to run a complete virus scan using the Microsoft Safety Scanner. It will scan the computer for viruses and malicious programs. To download it and know more about it, click on the link below.



Disclaimer: Any data files that are infected may only be cleaned by deleting the file entirely, which means there is a potential for data loss.


Hope this information was helpful.

Sahil Bali

77 people found this reply helpful


Was this reply helpful?

Sorry this didn't help.

Great! Thanks for your feedback.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this reply?

Thanks for your feedback.


Question Info

Last updated June 8, 2021 Views 187,647 Applies to: