Should I install 32-bit OS or 64-bit?
10935
What are the differences between 32-bit and 64-bit, and which should I choose?
119586
To use Windows and Ubuntu on one computer, which should I install first?
151499
Can I install Windows 7 64 bit on VirtualBox running on a Windows 7 32 bit OS?
2040
How to run 32-bit app in Ubuntu 64-bit?
151531
How to find out if my system is i386 or x86_64 before installing Ubuntu?
5917
Is it possible to use a 32-bit driver on 64-bit Windows 7?
10220
32-bit vs. 64-bit systems
54368
How do you run a 32-bit program on a 64-bit version of Ubuntu?
133193
Can I install Ubuntu 12.04 LTS on a PC with no OS?
141567
How can I determine whether my processor is 32-bit or 64-bit?
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?
72015
How to check whether my Intel-based Mac is 32-bit or 64-bit
82504
How much memory can a 32 bit process access on a 64 bit operating system?
8244
Difference between the i386 download and the amd64?
11599
amd64, i386 (32bit / 64bit) - Which version to choose?
60850
Can I install the 64 bit version?
10212
Is the 64-Bit version of Ubuntu only compatible with AMD CPUs?