Can't log onto MS since May 2014 - Ridiculous?

I tried everything, including uninstalling,re-downloading and re-installing - nothing seems to work.
The other computer runs MS perfectly fine, and I've noticed that it has more files than I do - oddly ( I don't know why and how).

Please read what I posted. These missing files are exactly why it won't work. You have a working copy, and a non-working copy with less files, and you are still confused? The issue is obviously the missing files. Fix that and Maple will probably work. You'll have to ask someone else how to do that though, I haven't really played in the past 8 months or so, so I don't remember where they keep the manual files. I believe they have 4 folders and a app you run that will download all the files in the automatic installer does not work. But seriously, its not hard to figure that it won't work if it has missing files. Your car is not going to go anywhere without an engine or wheels, is it?

Do you think I should just re-install my win7? I'm just so sick of this. 3 months is way too much, and Nexon just answers with the same old message all the time.

No,unless the only thing you want to use this computer for is Maple, seems like a waste. If you backup your HD i guess, it takes some time though.

Oh, and this probably is not an issue, but make sure your graphic drivers are up to date too.