Re-install steam you blind forget
estimated time for me to reinstall steam = 2 months
that's how slow my internet is in australia, plus the addons that i will never be able to find for all my games that i've had since 2009-10-11
also why are you calling me a 'blind forget' when you are the one who has minimal information on the situation and does not have any idea of a good solution
If you reinstall Steam make sure to back up your steamapps folder. It's got all your game files and can save you time from installing all the games again.
doing that now, it's 39gb and taking quite some time to put on my HDD
Better idea!
Go to your steam folder in program files.
Have steam closed (durr)
Delete everything in that folder other than the folder steammaps and Steam.exe.
Open Steam.exe.
Did it work?
will give it a try