Blender 2.78 is old, you should download Blender 2.79b from here:
https://www.blender.org/download/

In T61669#622680, @Marco (nacioss) wrote:

Blender 2.78 is old, you should download Blender 2.79b from here:
https://www.blender.org/download/

i downloaded 2.79b at first, but when i try to open it the program close itself.

In T61669#622691, @Jacques Lucke (JacquesLucke) wrote:

If the bug still exists in the newer version, upload the .blend file if possible (so that we can reproduce the issue).

i cant even open the newer version ):

Please make sure that your gpu driver is up to date.

Then try to start Blender from the console with the --debug option and post the output here.

In T61669#622711, @Jacques Lucke (JacquesLucke) wrote:

Please make sure that your gpu driver is up to date.

Then try to start Blender from the console with the --debug option and post the output here.

my gpu is up to date. how i can start blender from the console ?

Search for cmd in the windows search. Then execute this command C:\\path\\to\\blender.exe --debug (with the correct path of course).

In T61669#622733, @Jacques Lucke (JacquesLucke) wrote:

Search for cmd in the windows search. Then execute this command C:\\path\\to\\blender.exe --debug (with the correct path of course).

C:\Users\admin>C:\Users\admin\Desktop\blender-2.79b-windows64\blender.exe
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
found bundled python: C:\Users\admin\Desktop\blender-2.79b-windows64\2.79\python
Error: EXCEPTION_ACCESS_VIOLATION
that's what it said.

Hmm, not sure why that is happening. Can you try the Blender 2.79 build from here: https://builder.blender.org/download/ ?

In T61669#622739, @Jacques Lucke (JacquesLucke) wrote:

Hmm, not sure why that is happening. Can you try the Blender 2.79 build from here: https://builder.blender.org/download/ ?

OMG idont know how much i should thank u, thank u thank u sooo much. its working everything is working.