password problem after downgrade

[Metadas]

i have a MBP late 2010 i updated to the second beta of osx yosemite after a while of usage non of the apps where working (only safari) i think it some kind of bug in the new os so i downgraded to osx maverick using cmd +R at boot . now every thing works fine except when i try to change system settings like the time my password does not work although it works on session login any solution please​

 

[harryb2448]

G'day and welcome to the forums.

Go into System Preferences > Users & Groups > Password, and reset your password. For what it is worth using Yosemite Beta 2 everything works just great. Where did you download Yosemite from, the APple Beta Program or elsewhere?

 

[chas_m]

I disagree with both of you.

Metadas: I have no idea what caused the problem you experienced, but it wasn't Yosemite PB 2. I use a variety of apps every day on it, and they work fine.

Harryb: Having said the above, I can easily prove that "everything works great" isn't true. Try launching iMovie.

 

[harryb2448]

A tad slow chas m but launches and runs okay. Is your version OS X 10.10 (14A329r)?