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Windows 32bit V Windows 64bit

Another common question I get asked in regards to Microsoft Windows is what is the difference between 32bit and 64bit versions? And what are the pros and cons of both?

From a user’s point of view there are probably only a few major things you will notice between them, here is what I tell people:

Windows – 32bit


Offers the greatest backward compatibility with older applications and programs (over 5 years old). If you want your old Windows XP applications to run on Windows 7, you stand a much better chance of compatibility by selecting a 32bit Version.


Provides limited support of the amount of RAM (Random Access Memory) in today’s modern PC’s, with the absolute maximum being 4GB recognised. Although you can potentially physically fit more memory in to the computer, if you are running a 32bit version of Windows you will not be able to take full advantage of it. For example, if you install 8GB of RAM, your system will only be able to utilise 4GB.

Windows – 64bit


Provides support for today’s modern computers allowing RAM (memory) to be installed up to a maximum of 192GB.

High performance, media and gaming machines benefit greatly from the extra memory and overall system performance is increased.


Increased likelihood that your older applications will not work, or will not work correctly.

If you would like advice regarding your system please contact PC Guy in Ellesmere Port or call
0151 339 0760.

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