Stefan Mileschin

Most new PCs have been shipping with the 64-bit version of Windows — both Windows 7 and 8 — for years now. 64-bit bit versions of Windows aren’t just about taking advantage of additional memory. They’re also more secure than 32-bit versions.

64-bit operating systems aren’t immune to malware, but they do have more security features. Some of this also applies to 64-bit versions of other operating systems, such as Linux. Linux users will gain security advantages by switching to a 64-bit version of their Linux distribution.

http://www.howtogeek.com/165535/why-...s-more-secure/