Startup help

camogli

Registered
I have a problem, sometimes my computer starts with the os 9.1 so i went to system panel to choose osx in the startup,
but i choose it and sometimes it changes again to os 9.1 so i have to check all the time to doesnt move to 9.1.
Please what i have to do to repair this problem. just to stay always at the osx.
Someone to help me please
 
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