Windows 10: High disk usage - can't disable Windows Defender

I have an AV installed, and supposedly Defender should detect this and disable itself. And yet my disk usage still sits at 100% as Defender sits there and performs scans that I can't stop. Evidently Microsoft recently made it impossible to turn off Defender manually, so I'm at a loss for solutions.

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:)

 

High Disk Usage

Hi all, I'm struggling with finding things to fix my high disk usage. I've spent many months searching the internet and doing all the listed suggestions like disabling SuperFetch, Windows Defender, Updating drivers, ect. and still I'm stuck with a high disk usage. Here's a screen shot I took immediately following a restart and opening up to a new Firefox window.





I have noticed Service Host: Local System takes up quite a bit of disk usage and that if I close it and let it open back up all by itself then it immediately makes my disk usage drop into a much more manageable 40-60% usage range. But eventually after a while it maxes out again and I have to close it out again. It's an annoying step just to be able to use my computer.

Also, I have noticed that after working with my mom's computer today, that her disk usage when no programs are running is only like 5%. Makes me wonder why my computer can have no programs running but my disk usage never drops below 30% and sits in the 40-60% range with spikes up over 75%.

I honestly don't know enough about computers to do much more than I already have without causing major issues. BTW, just a couple weeks ago I had to do a Windows reinstall, not a complete reinstall, just the basic reinstall they allow you to do on Windows 10 where you still keep all your personal files. Ever since that a lot of times when I try to open a process like Run or Task Manager I'll get an error message that it can't open and then I do it again and it will open the second time.

Here's a screenshot of my computer information so you can see what I'm working with here.

 

Windows 10 - High Disk Usage - 100%

I am seeing high disk usage, often between 90 and 100%.

I have tried adjusting some settings, some help temporarily but after a restart I have the same high disk usage issue.

• Disable superfetch
• Disable Windows Search
• Disable Windows Update
• Disable Geolocation Services
• Disable Network Services
• Manually adjust paging file size for programs and background services
• Got rid of apps (no chrome, got rid of bloat like Amazon, etc.)

The main user of disk usage appears to be Service Host Local System 13 and it uses anywhere between .5 and 10 MB.

Below is a snip of the task manager. Computer is Dell Inspiron 15 - 3000 series. 4 GB RAM, 64 bit operating system and AD A4 processor if that helps.

Any ideas on how to resolve the high disk usage issue permanently?

 

System and compressed memory high disk usage

Hi Robert,

As you are facing issues with high system and compressed memory on your device we will help you with this issue.

Provide us additional information to assist you better with this issue:

• What is the make and model of your device?
• What is the complete error message with respect to the memory when you are trying to access games?

This issue might have occurred due to applications or services running at the startup on the computer. Bad sectors on the hard drive or outdated and incompatible drivers might also cause such issues.

I suggest you to refer to the below post check if your issue matches with the same.

If so, I recommend you to try the troubleshooting steps suggested by Amarjeet Paul
and check if it helps.

System and compressed memory high disk usage during file
copy

Hope it helps. Get back to us with an updated status of this issue for further assistance.