admin posted an update 1 week, 6 days ago
WHY IS VIRTUALBOX UNABLE TO WORK WITH 64 BIT LINUX AND WINDOWS?
So here is my situation I own 64 bit architecture (AMD64) notebook THINKPAD T420 and I want to install 64 Bit old 64 BIT arch compiled Debian distribution of Debian Squeeze but surprisingly in the list of choosable operating systems offered by VirtualBox virtual machine server only Virtual Guest OS-es of 32 BIT are supported. After a lot of Googling I finally realized the problem might be related to the fact Hardware Virtualization is / might be disabled in BIOS (I think this laptop has a combined odd hardware boot up manager of BIOS and UEFI). After checking the BIOS setting I made sure actually Virtualization is Disabled for REAL! SO THE FIX (SOLUTION) TO THIS PROBLEM WAS AS SIMPLE AS SIMPLY ENABLING VIRTUALIZATION HARDWARE SUPPORT OPTIONS FROM BIOS
HOORAY ITS A WONDERFUL DAY IT WORKS AGAIN!!! YUHUUU! :}])