100s of people with same proplem
https://www.reddit.com/r/Windows10/comments/4vufpo/windows_10_fully_freezes_after_anniversary_update/
UPDATE 31/8/2016 MICROSOFT FIXED IT .
Official statement and discussion FROM MICROSOFT FORUMS
http://answers.microsoft.com/en-us/windows/forum/windows_10-performance/windows-10-may-freeze-after-installing-the/5a60d75d-120a-4502-873c-8bfec65c82d0?auth=1
https://www.reddit.com/r/Windows10/comments/4vufpo/windows_10_fully_freezes_after_anniversary_update/
UPDATE 31/8/2016 MICROSOFT FIXED IT .
Official statement and discussion FROM MICROSOFT FORUMS
http://answers.microsoft.com/en-us/windows/forum/windows_10-performance/windows-10-may-freeze-after-installing-the/5a60d75d-120a-4502-873c-8bfec65c82d0?auth=1