Physical Memory Limits for Windows 7

Limits on memory and address space vary by platform, operating system, and by whether the IMAGE_FILE_LARGE_ADDRESS_AWARE value of the LOADED_IMAGE structure and 4-gigabyte tuning (4GT) are in use.

Limits on physical memory for 32-bit platforms also depend on the Physical Address Extension (PAE), which allows 32-bit Windows systems to use more than 4 GB of physical memory.

The following table specifies the limits on physical memory for Windows 7.

windows memory limits

To learn more about the memory & address space limits for other Windows releases like Windows Server 2008, Windows Vista, Windows XP, Windows 2000, 32-bit / 64-bit, etc visit MSDN.

Physical memory allocation and memory status in Windows 7 may interest you if you are looking for more on this!

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.

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