Why if my system is 64-bit, I can't install Ubuntu 64-bit in virtual box?
25756
Cannot install Ubuntu in VirtualBox due to "this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot" error
2040
How to run 32-bit app in Ubuntu 64-bit?
156618
VBox on 14.04, Kernel driver not installed (rc=-1908)
48572
Is my machine 32 bit or 64 bit?
24802
How to install VirtualBox to use Windows or other OS?
33540
How can I switch a 32-bit installation to a 64-bit one?
154622
How do I resolve this installation error?
10220
32-bit vs. 64-bit systems
56683
Trick a 32-bit application into running on 64-bit system?
10935
What are the differences between 32-bit and 64-bit, and which should I choose?
125397
Determine whether or not I can install a 64-bit operating system (Linux) from the BIOS
143853
How to install VirtualBox from command line?
100986
Can Ubuntu 64bit be installed on a 32bit computer?
79238
How to determine whether a given Linux is 32 bit or 64 bit?
44601
I have a 32-bit machine, can I use programs that are meant for 64-bit processors?
31705
Virtual Box Won't Accept .ISO To Install OS
31374
Why doesn't 32-bit Eclipse run in 64-bit Ubuntu?