Windows live messenger is not opening

SORRY I WOULDHELP IF I COULD BUT I DONT KNOW HOW

hence my last post, I have fixed this problem for myself. I reccomend trying this method, though I roughly remember exactly what I had done. I messed around with my firewall settings mostly, to the point that it was connected, but whenever I opened firefox it wouldnt connect to any websites. The thing is, your WLM will open if your disconnected from the internet, but I got it to a point where the connection was enabled,firewalled, but the proxy or firewall settings were refreshed, making it (im not sure how) but unable to access anything over the connection(websites, etc) anyway to the point

1) I removed windows live messenger and sign in assistant from my computer
2) restore the default settings on your firewall (control panel -> network connections -> right click then properties -> advanced -> settings -> advanced -> restore defaults
3) at this point you will be unable to access the internet, which is where you would perform a "system restore"
4) in order to do a system restore, go to accessories, then system tools. set your date, to the day before the current day.(or closest date to the current date)
5. Your computer will reset, and you will go through the restoration process.
6. This is where my mind goes blank.. it showed me as connected to the internet, but my firewall settings had been reset so it made it unable to access websites and such, which opened WLM (it opens when dced from internet). Go back to network connections (see 2) ) and right click your connection (which ever one you use to go on the internet) and click "Repair". go through that process. By now, I am hoping that windows live messenger will be open, unfrozen, and the internet will be connected correctly. at this point, you can sign in.

review: im not exactly sure this will work, mess around with it but try not to delete anything important! this method could be extremely harmful to your computer so please, make sure you know what your doing and follow these instructions closely.(BY THE WAY, WHEN YOU RESTORE YOUR COMPUTER USING SYSTEM RESTORE, WLM WILL BE BACK ON YOUR COMPUTER, DO NOT DELETE IT AGAIN.)

i really hope this helps anyone!

adding EVEN MORE to the previous post! THIS IS REALLY IMPORTANT! unplug your router and modem after all this, and then reconnect them. THEN you should be able to access websites again and wlm will be functional.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hey I Have A Problem I Tried Unstallling Msn 9 And I'ts Saying That Its Unstalled , But When I Try Too Download MSN 8.5 Its Says I Have A Newwer Verison Installed Im Reallly Confused Can SumBody Help Me :(!!!!