I have an external hard drive that I could not eject despite all programs being closed.
I followed the instructions explained in this answer to check which process was preventing the drive from being ejected.
I found two entries in the log:
The application \Device\HarddiskVolume5\Windows\explorer.exe with process id 21776 stopped the removal or ejection for the device USB\VID_0480&PID_0901\20211220017702F.The application System with process id 4 stopped the removal or ejection for the device USB\VID_0480&PID_0901\20211220017702F.
What should I do? Should I kill explorer.exe? What is System? Should I kill that too?