Extremely Simple Question

[The Newbie]

I'm not the most tech-savvy person out there.
I can't even install RPGMaker!  Whenever I try to, I get an error message saying I don't have enough free disk space.

I've scoured this forum for an answer, but it seems nobody has asked a question as stupid as mine.

Help?

[psy_wombats]

Well, do you have enough diskspace? Have you tried freeing some up by removing useless large files...?

[The Newbie]

I have gigabytes of free space right now.

[psy_wombats]

I seem to remember something about that coming up when access to the install destination is denied...? Are you running on Administrator?