activation failure after windows10 update

hi guys, i have a Solidworks 2012 licence and i use it everyday.

yesterday, windows 10 made an automatically update, after restart, when i launch Solidworks, a windows appear to activate my product.

i selected automatically activation and another windows tell me "count exceed" but i never change my computer and never transfert licence...

now i can't use Solidworks and it's a major problem for me.

thanks for help

SolidworksGeneral