auto zoom not works with me

I play a video after update 10.4.5, no re-size my window of mpchc.
What is AeroSnapped?   
I have windows 8.1update, last WHQL NVIDIA.

This may be helpful:
http://www.davescomputertips.com/disable-aero-snap-in-windows-7-or-8/

thanks, but auto-resize window not works when I start a video.
I have tested put fullscreen and after put no fullscreen I've good window size.   

Autozoom is working fine here.

Try resetting settings with Codec Tweak Tool.

the resetting settings it done nothing.
mpchc 1.7.4.8 auto zoom works fine, not 1.7.4.13.

It was an intentional change by the MPC-HC developers:
https://github.com/mpc-hc/mpc-hc/commit/03e422dbbfb101fcf88b2e24557863aba9a709d6

If you don't like this new behavior, then you can submit a bug report here:
https://trac.mpc-hc.org/report/9