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windows 7 - Why half of my RAM of 8GB is missing?

Have been sitting with 8GBs of RAM for 2 years still thinking I needed another 4GBs and never questioning why so often I get message about low physical memory that would close all open programs (Firefox mostly since it is mainly what I use) if not paid attention to immediately. I would then have to restart programs using most memory (Firefox is one of them) to continue working normally and not losing any unsaved changes.


Anyway, II have noticed that although system sees 8GBs of RAM, it still uses half of it and I will demonstrate this with screenshots further.


Combined screenshots of System Information and Task Manager:


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Resource Monitor screenshot:


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RAMMap screenshot:


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And finally my swapfile condition at one time and another. The point is that it is big all the time:


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Notice "Available" and "Free" memory from above screenshot. This is what I see in Task Manager most of the time and opening another 5-7 tabs in Firefox causes "Low Memory" warning to appear.


Currently used primary videocard:


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Any thoughts?


WLTRAY.EXE has not been mentioned here but look at this:


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System specs



  • Dell Latitude E6420

  • 8GB of RAM, 120GB Intel SSD

  • Intel HD Graphics, nVidia NVS4200M

  • Windows Enterprise 64-bit


UPDATE 3rd May, 2014 - I don't think problem was in wireless adapter process. I still think it has to do with Firefox. Here's screenshot of Task Manager:


enter image description here RamMap:


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VMMap:


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UPDATE: 01/04/15


Looks like my whole system has memory leak. I tried using Chrome and eventually like with Firefox, it crashes with either message seen here or results in BSOD or blank screen where restart is the only way to work again.


Here's my Chrome browser running after several hours of last it's restart, with 29 tabs:


Windows Task Manager


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Resource Monitor


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Chrome Task Manager


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I have restarted Chrome and here are stats:


Windows Task Manager


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Resource Monitor


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Chrome Task Manager


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