can't install programs

[hanksmith4]

hello I am trying to reinstall bootcamp
I have 40 gig left on my mac hd
I can't get past the I aggree button
it asks where to install the program and the continue button is dimmed
is the fact that I only have 40 gig causing this to acur?
if not what is causing this to not let me install this?
73
hank smith
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