Troubleshooting VT-x Is Not Available (VERR_VMX_NO_VMX)

This guide provides instructions to resolve the following error in VirtualBox: “Failed to open session for virtual machine (VM MachineName). VT-x not available (VERR_VMX_NO_VMX) with result code: E_FAIL (0x80004005). The VirtualBox “VT-x not available” error occurs on a computer running Windows 10 Pro with a Gigabyte Z370 HD3P motherboard and an Intel Core i7-8700 processor … Read more

How to fix the supr3hardenedwinrespawn error in VirtualBox

Many VirtualBox users (including myself) have faced the following problem when starting a virtual machine after rebooting the computer: “VirtualBox – Error in supR3HardenedWiReReSpawn” and after clicking OK, another error “Failed to open a session for the virtual machine exit code 1 (0x1) – E_FAIL (0x80004005)”, pointing to `VBoxHardening.log` for details about this error. But … Read more