I´m not changing to another operative system because of the malfuntion of one update.
I just can´t bealive that after all of the time we take writing to the department support acknowledging the problem, they just simply make a new release without even mention about the problem.
For those who want to work with the system normally, please go back to the update 5.0.10370 you will be able to load projects from more resent versions.
Please keep update if Vienna decide keeping giving support to there users and solve this problem.