Problem with package manager on miktex 2.9

I've just installed miktex 2.9 32 bit, on windows 7, since 2.8 seems not 
to be supported anymore. When I try to do any package management on it 
windows says the program will be closed. Any ideas on how to solve this?

-- 
--David.
Omnis enim res quae dando non deficit, dum habetur et non datur, nondum 
habetur quomodo habenda est.

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