Disk 0 (C:) missing from Task Manager Performance Tab in Windows 10

Question

In both Windows 10 and Windows Server 2012R2, I am missing my C: drive (which is Hard Drive 0 or Disk 0) from the Performance tab in Task Manager.

This used to work with Windows 8.1.

Comparison of 8.1 (left) and 2012R2 Task Managers, on 2 different systems. They both have a C: drive though.

How can I configure the Performance tab to also show information for the first drive?

Update: Waid Johnson's answer worked well for one of the systems I am looking at. The system that is not working has Intel Rapid Storage Technology enabled, and there is a cache on Disk 1 that caches Disk 0.

Answer 1

Try giving this a shot:

1. Ensure Task Manager is closed.

2. Launch the Command Prompt using the Run as Administrator option.

3. Enter the following at the Command Prompt:

   diskperf -Y
   

4. Hit Enter.

5. Close the Command Prompt.

6. Re-open the Task Manager.

PD: This command is to unhide the disk activity only in Windows Server Family. It wont work on Windows 10/11 or any other desktop.

Answer 2

Only drives that have Write Caching enabled will show up in Taskmgr. So open device manager, select the drive, go to the option and activate write caching.