Windows 10: The 100% disk usage issue

Hi every body!I am writing a program of kind "one to many files" create many signed/crypted block files from one single input file.I am regularly facing the 100%-disk-usage issue as shown in the performance tab of the task manager.The program sticks and the system becomes unresponsive any unrelated program aside too..As far I can see with the performance monitor, the small block files that I created stay "on air" many times after I closed them, somehow "delegated" to the 'SYSTEM' task pid 4, which I assume to be the action of the system write cache ?The problem is that 'SYSTEM' seems h

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100% disk usage and memory usage

Hi,

100% disk usage and memory usage can be caused by a software corruption, running application running on the background and malware or virus infection.

For us to properly isolate the issue and provide an appropriate resolution, kindly answer the questions below:

• Did the issue happen after installing the Fall Creators?
• Did you receive any error messages?
• Can you send us the screenshot of the Task Manager showing the 100% disk usage and memory usage?
• What troubleshooting steps have you done so far?

For isolation purposes, please perform a clean boot to see if the same issue will occur. Refer to this
article for more information on how to perform a clean boot
in Windows.

Looking forward to your response.

 

100% disk usage

The most common cause of 100% disk usage appears to be Superfetch and Prefetch, but there are also other causes. You can try disabling both these features and see if it helps.

This article provides steps to disable prefecth and superfetch:

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How to Fix 100% Disk Usage Error in Windows 10

 

Disk Usage at 100% with nothing running

My PC is running Windows 10 with the latest updates but has suddenly become unusable with disk usage staying at 100% even with nothing running and just the same processes listed in Task Manager as before the problems
started. I've tried a few suggestions found in online forums - disabling Windows Search and Superfetch, adjusting page file size, etc. but nothing has done the trick yet. I don't have any outside anti-virus software installed. I read about the potential MSI
issue but don't have IDE ATA/ATAPI Controllers listed in the Device Manager. Finally, it seems to boot up normally and will have periods where the disk usage drops and it's usable but those moments are brief and it inevitably goes back up to 100% usage.