dear support,

Currently my system is displaying a 100% disk usage with the main cause being system.

I've tried disabling the services superfetch and windows search to no avail.

I'm currently running the windows performance toolkit in order to get more system information. Where should I upload the logfile in order for you to see what's the cause of the problem?

Zip the file and upload to us on Onedrive (or any file sharing service) and give us a link to it in your next post as suggested in the following thread:

https://social.technet.microsoft.com/Forums/en-US/5e42ef53-df31-4c54-8cfa-384310c6e8d9/disk-usage-at-100-on-windows-81?forum=w8itprogener

Hi mergpijpje,

Please refer to ZigZag `s link to get the logfile  and then refer to the following link to upload the file the OneDrive and paste the link here.

How to use OneDrive to upload a file and get a link
http://windows.microsoft.com/en-hk/onedrive/share-file-folder

Best regards

Without the trace files or any information about what is shown by Resource Monitor to be using the drive there is no way to provide further suggestions.

The one piece of advice that I can give is, if the application causing 100% disk usage is tiworker.exe, you may want to leave the system running overnight or for an extended period of time. Tiworker.exe cleans up the core system files following installation of updates and ultimately restores space and performance to your system.

Brandon
Windows Outreach Team- IT Pro
Windows for IT Pros on TechNet