Delete windows.old, this fixed it for me after months of searching.
https://www.cnet.com/how-to/how-to-delete-the-windows-old-folder-from-windows-10/
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How to fix 100% disk usage in Windows 10
This is caused by a common combination of Skype as well Google Chrome. Similar issue with other programs could also cause 100% disk usage. To fix this do the following:
Google Chrome:
In Google Chrome, go to Settings > Show Advanced Settings ... > Privacy > Prefetch resources to load pages more quickly
and untick it. See Figure-1 below:
Figure-1
Skype:
Make sure you have exited Skype and it is not running in the taskbar (if it is running in the taskbar then quit it).
Open Windows Explorer and open the following folder:
"C:\Program Files (x86)\Skype\Phone"
Now right click "Skype.exe" file and then click "Properties" and open the "Security" tab.
Click the "Edit" button and then highlight "ALL APPLICATION PACKAGES" and place a tick in the "Write" box.
Click "Apply" and then "OK" and then "OK" again. See Figures-2 to Figure-6 below:
This is it, now run Skype and check the Disk Usage in Task Manager and it will no longer show you 100% disk usage anymore:-
I hope this helps people. I spent a long time in finding a solution to this problem.
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Delete windows.old, this fixed it for me after months of searching.
https://www.cnet.com/how-to/how-to-delete-the-windows-old-folder-from-windows-10/
Thank you so much, it helped me to solve my disc issue 100% usage, after I executes the steps you wrote my disc usage decreased 96%.
The only thing I did that has not already been posted is go into battery saving options and turned off Cortana. It helped and went a week without a problem. It has returned but only occasionally.
Don't you have info about what they have done??
I'll help a lot to know.. we are still facing the problem.
Thanks in advance and have a great day
i think best solution in this link try it fix 100% disk usage in Windows 10
https://www.thetruebox.com/ask/16/help-me-to-fix-100%25-disk-usage-in-windows-10