Windows using up all 16GB of my RAM

Wonderclam

Distinguished
Jul 24, 2012
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Not exactly sure what happened, but a few days ago, it started happening. My computer would start slowing down, I"d go to task manager and see that most of my 16GB of RAM is being used up. Never had this problem before. I have Windows 7 64-bit. When I use task manager, I'd see that it's Explorer.exe that would be taking up all the RAM. It's like it happens randomly. Right now, it's OK.

I ran Ccleaner, spybot, Avira, defragged, but it's still happening.
 
Solution
you have a back groud process running try to do a full virus without network connected .then compare with process explorer where on before and when there is no network connection .