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I found that my Windows machine was using over 95% of RAM constantly and it was often slow. And I found that "Paged Pool" always used over 10GB RAM. Here's 2 screenshots of task manager:
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I followed the instructions in answer https://superuser.com/a/949246/160304 and here's what I found:

  • Use poolmon to sort paged pool usage by bytes, the thing which uses around 12GB(I believe) has tag FMfn:
    enter image description here

  • Find out which driver is using tag FMFn, looks like it's fltMgr.sys:
    enter image description here

  • Find out what fltMgr.sys is, it's from microsoft:
    enter image description here

Now I don't know what to do next. I'd appreciate some ideas.

SparedWhisle
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