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I started to notice that my Windows 7 PC was running super slow and everything I opened would say not responding after a few seconds.

I performed a format and re-install of Windows, defragged my hard drive, and ran a registry cleaner. Nothing has helped. Even on start up my PC is super slow.

My ram is running at 30% and there is no high CPU usage at all. This is really frustrating and I can't do any work because of this.

What can I do to fix this?

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If you've reformatted the hard drive and done a clean install of windows then I am afraid to say that the issue is most likely due to some hardware malfunction in your system. I would recommend backing up your important data now and taking it into a shop to try to determine where the problem is coming from. The only other option is to invest in a new machine.

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