I've just applying SP1 to Exchange 2010 and all the things has been done without any problem.
I have install it with elevated rights, I have installed all the needed update and the installation has finish without any erros.
Anyway, when accessing to OWA, i can see the welcome page with username/passowrd prompt but when I log in I get a blank page (error 500)
I have also follow theses partial instructions but I cannot fix it:
Does anyone know how to do?
Thanks for help