I just downloaded the software update for Yosemite after it restarted and installed the software I have a white screen. What should I do ?o

I Just downloaded the latest software for Yosemite 10.10 after it restarted and installed the software it stopped, now I have a white screen. What should I do now?

Hi ..
Hold down  the power button until the screen goes black.
Wait about ten seconds then restart your Mac while holding down the Command + R keys.
From there you should be able to access the built in utilities to verify and repair the startup disk if necessary and reinstall OS X. (10.10.1)

Similar Messages

Maybe you are looking for