Hello, I want to remove all Fredo plugins from my computer as if they were never installed before. Is it possible to completely delete everything?

i have a problem with exprot proxy max to sketchup

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link file
http://www.mediafire.com/download/fn0hyapaxfr93jd/014_Vray.rar

tree from archmodels_vol_106

thank you very much

How much time do you use a computer to render the computer speed.
http://www.mediafire.com/?et1a45655i4xb6m
13.36 s

thank you for you plugin.