Problems with SW2017 student edition

Hello everyone

I'll try to explain my problem the best I can. My solidworks just crashed a few days ago. OK! Just reboot the system and start sw again... Not so simple this time. My computer gets stuck at "loading registry" and I got no response. Sometimes he passes and gets stuck at loading vba engine. Try everything I can found online and nothing works. Then I found a temporary solution... If I create a new windows user, sw starts after a 20 minutes loading! But... if I close sw, it won't start anymore! I have to eliminate the user I created and create a new one. Thats very annoying!

Then I try to uninstall sw to make a fresh new installation but when I try to deactivate my license, sw gets stuck again and I have to start all over again.

Help Please!

Thank you all!

SolidworksGeneral