Skip to main content

VirtualBox: 64-bit Guest OS

VirtualBox and Hyper-V

While playing with Vagrant, VirtualBox, and MongoDB on my old ASUS ROG Generation 1 - which has Intel Q720 CPU and runs Windows 10 64-bit - I ran into this error.

VT-x is not available(VERR_VMX_NO_VMX).
VirtualBox error: Intel VT-x is not available

Also, VirtualBox list only 32-bit version for guest OS.

It is so weird because I can installed Ubuntu 64-bit as guest OS in VirtualBox while booting this laptop in Windows 7 64-bit.


I tried removing Hyper-V feature and reboot.


VirtualBox now display 64-bit version of guest OSes.


And Vagrant works too.

Popular posts from this blog

Hydra: Notes

Hydra v9.1 (c) 2020 by van Hauser/THC & David Maciejak - Please do not use in military or secret service organizations, or for illegal purposes (this is non-binding, these *** ignore laws and ethics anyway).

WinRAR command

Examples: Compress four folders f:\z1 f:\z2 f:\z3 f:\z4 to one file f:\z.rar. "c:\Program Files\WinRAR\Rar.exe" a f:\z.rar f:\z1 f:\z2 f:\z3 f:\z4 F:\>"c:\Program Files\WinRAR\Rar.exe" RAR 5.61 x64 Copyright (c) 1993-2018 Alexander Roshal 30 Sep 2018 Trial version Type 'rar -?' for help Usage: rar - - a Add files to archive c Add archive comment ch Change archive parameters cw Write archive comment to file d Delete files from archive e Extract files without archived paths f Freshen files in archive i[par]= Find string in archives k Lock archive l[t[a],b] List archive contents [technical[all], bare] m[f] Move to archive [files only] p Print file to stdout r Repair archive rc Reconstruct missing volumes rn Rename archived ...