Why does Windows show less RAM than installed?

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Anand Khanse is the Admin of TheWindowsClub.com, 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.


  1. I like the program Speccy from Piriform for gathering the information for me in an easy to use interface.

    Piriform is also the maker of CCleaner.


  2. Sandeep Rathod

    I don’t see any usable memory description in system properties,it just says 4GB… But i can see it in task manager where 18.5MB is hardware reserved and rest everything is usable.
    OS: Windows 8.1 x64

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