I have to admit this isnt something Ive thought about in a long time, but I peeked around and lo and behold Microsofts latest OSWindows 10is being offered in a 32-bit version.Microsoft says it has at least 71 million 32-bit users still (as of 2014), and didnt want to leave them out in the cold, or thrust them into the open arms of Cupertino (headquarters of rival Apple).Given this situation, I figured Id explain the main difference between the two.
First of all, if youre wondering which version of the OS you have, you can easily check by right-clicking the Start button in Windows 10 and selecting System. Vs 64 Windows 7 And 8In Windows 7 and 8 (and 10) just click System in the Control Panel. Windows tells you whether you have a 32-bit or 64-bit operating system. In addition to noting the type of OS youre using, it also displays whether youre using a 64-bit processor, which is required to run 64-bit Windows. Unless you have a really old PC (it would have to be over 10 years old), you should also have a 64-bit processor. Now that you know what you have, does it matter It could matter a lot, depending on how you use your PC. The biggest difference between 32-bit and 64-bit OSes is that the 32-bit version can only address a bit less than 4GB of memory, in total, for the entire system, and this includes the memory in your video card. ![]() For example, if you have a system with 4GB of RAM but your video card has 1GB of memory in it, that leaves just 2.5GB of memory for the OS to use, which isnt much at all for Windows. Even worse, you could theoretically have an 8GB system running 32-bit Windows, which means theres 4GB of memory in your system that might as well be used as a drink coaster. Only 64-bit systems can address more than 4GB of RAM, so this one reason alone is why most people choose one over the other. As my esteemed predecessor Lincoln Spector discussed previously, there is a workaround called Physical Address Extension (PAE) that allows 32-bit systems to address up to 64GB of RAM, but only server editions of Windows offer it. Though there are other differences, the ability to address certain amounts of RAM is the main concern for most users. In fact, if you visit Microsofts FAQ on this subject, all it says is, The 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system. Finally, as far as Windows 10 is concerned, if youre running a 32-bit operating system (Windows 7 or 8) and perform an upgrade, Microsoft will give you the 32-bit version of Windows 10. If you want to move from 32-bit to 64-bit, youll have to perform a clean installation, which means buying a copy of Windows 10.
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