VirtualBox: 64-bit Guest OS

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.

GNS3: Notes

As usual, notes is for myself and might be useful and also save time for beginners start using GNS3 .

command1 ; command2 ; command3 command1 is executed, then command2, and then command3 command1 && command2 && command3 command2 is executed only if command1 run successfully (exit code is 0), command3 is executed only if command2 run successfully (exit code is 0) command1 || command2 || command3 command2 is executed only if command1 exit code is 0 (failure), command3 is executed only if command2 exit code is 0 (failure)

Commonly used shortcut keys

Learn and use common shortcuts. Shortcuts for all Windows applications Shortcut Action CTRL + C Copy CTRL + X Cut CTRL + V Paste CTRL + Z Undo Shortcuts in Microsoft Outlook Shortcuts in Microsoft Outlook Shortcut Action CTRL + Q Mark as read CTRL + SHIFT + K New task CTRL + SHIFT + J New journal Shortcuts in notepad++ Shortcuts in notepad++ Shortcut Action CTRL + L Delete current line CTRL + Q Comment block Shortcuts in Google Docs, Google Sheets Shortcuts in Google Docs, Google Sheets Shortcut Action CTRL + / Display keyboard shortcuts

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