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On a computer that is running Windows 7, the usable memory (RAM) may be less than the installed memory. For example, a 32-bit version of Windows 7 may report that there is only 3.5 GB of usable system memory on a computer that has 4 GB of memory installed.
This article at Microsoft's MSDN site shows the memory limits for versions of Windows and Windows 7 32-bit is listed as a 4 GB limit. You used to be able to use PAE to see more than 4 GB of RAM with Windows XP but this option was disabled in Service Pack 2.
My advice would be to go with Windows 7 Professional, since the Enterprise and Ultimate also have a 192 GB limit on RAM. The only main features you would be missing would be BitLocker and extended language support.
From the Memory Limits for Windows Releases web page: Physical Memory Limits: Windows 7. The following table specifies the limits on physical memory for Windows 7. Version. Limit in 32-bit Windows. Limit in 64-bit Windows. Windows 7 Ultimate.
20 mar 2010 · This will show you how to specify the maximum amount of physical memory (RAM) to be used by Windows to simulate a low memory configuration by using less RAM, or to make sure that you are using all of your installed RAM.
16 gru 2010 · Windows 7 64-bit does not always correctly identify the amount of memory you have installed in your PC. You can fix this problem by manually specifying how much memory Windows 7 64-bit should use by changing a value in the BOOT Advanced Options window.
23 lis 2023 · The Starter and Home Basic editions have a RAM limit of 8GB, while the Home Premium edition supports up to 16GB. The Professional, Enterprise, and Ultimate editions can handle a maximum of 192GB of RAM. Another important consideration is the RAM support provided by the motherboard and processor.
