But after rebooting my PC, when I was trying to boot my VM, it says
I'm sure there're no AVs in my PC, and I tried to fix the VBox using installer. It failed.The virtual machine 'CentOS 8.1' has terminated unexpectedly during startup with exit code 1 (0x1). More details may be available in 'F:\Projects\VirtualBox VMs\CentOS 8.1\Logs\VBoxHardening.log'.
Result Code: E_FAIL (0x80004005)
Component: MachineWrap
Interface: IMachine {85632c68-b5bb-4316-a900-5eb28d3413df}
So I tried to reinstall VBox and boot my VM, but it failed again.
After serval times of reboot, I found that the only way I can have my VMs boot is to [reinstall VBox] - [reboot PC] - [install VBox] - [boot VMs].
I know this is weird but I have no idea how to fix it, here are the hardening logs for the three attempts.
(Since I'm new here, I'm not allowed to add images, so I attached it to the zipfile)