One of our students was getting the error VirtualBox Error in supR3HardenedWinReSpawn with log details in VBoxHardening.log while starting a virtual machine.
This issue happens even after uninstalling VirtualBox and reinstalling using a different version. It happens both with version 6.x and 5.x respectively.
This problem was resolved after uninstalling "Trusteer Endpoint Protection" offered by IBM in the student's Windows 10 operating system.
We tried other potential solutions described in https://superuser.com/
questions/1307424/virtualbox- 5-2-6-and-5-2-6-error-in- supr3hardenedwinrespawn but uninstalling "Trusteer Endpoint Protection" offered by IBM solved the problem.