Dictionary attack not working black screen

[Attacker]

I recorded the video to make it easier to explain.
https://youtu.be/2hIO7d7fGWA 1:24 sec
p.s.
Previously worked at Win7x64 SP1 and installed all the updates via the Windows update.
A new system of current Win7x64 SP1, without updates.

Sorry for the translation (Google Translate)