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I run a development environment in a Windows 7 VM (on VMWare) and am running into an issue in the VM where my CPU Usage sits at 100% and my Physical Memory stays around 40-50%. My computer has 24 GB of RAM in it and I allocated 8 GB to the virtual machine. The processor in my machine is an Intel Core i7-4700HQ (CPU @ 2.40GHz). What could be the issue?

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  • Ahhhhhh....swapping?
    – mdpc
    Commented Dec 1, 2014 at 22:36
  • Excuse me ignorance, but what do you mean?
    – Joshua Terrill
    Commented Dec 1, 2014 at 22:46
  • which process uses the CPU? Vmware? Assign less cores to the VM to have some resources free on the host.
    – magicandre1981
    Commented Dec 2, 2014 at 4:58
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    It's not my host machine that's having the problem, it's my virtual machine OS. And it's whatever application I have open. If I have NetBeans open, it takes up 100% CPU, if I open Chrome, that takes up 100% CPU, etc.
    – Joshua Terrill
    Commented Dec 2, 2014 at 18:55

1 Answer 1

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I ran into similar issues, in Windows Task Manager it shows 100% CPU usage and high memory usage in Windows 7 SP1 virtual image using vmware vSphere 5.1.0 . Even after adding more memory and CPU it would utilize whatever the system has.

After removing all Windows update on windows 7 image and manually installing them back by the type I was able to determine that Windows Security update was the root cause.

Another great tool is "Process Explorer" by Microsoft which give more details than the native Windows Task Manager.

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  • Did you note which update? If you simply hid it, you can identify it by doing "restore hidden updates" to see a list (actually unhiding takes additional steps).
    – fencepost
    Commented Feb 5, 2015 at 19:22
  • Wow, that must have been a long journey...
    – Little Helper
    Commented Feb 5, 2015 at 19:50

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