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MacBook Pro (Retina, 15-inch, Mid 2014)
Processor 2.5 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB
Storage 512GB
After updating my MacBook to OS X to 10.10.3, it makes it start up slower and stuck a second on desktop.
How can I get back to previous OS X?
MacBook Pro with Retina display, OS X Yosemite (10.10)
Select Macintosh HD as the Startup Disk.
“Set the default startup disk” http://support.apple.com/kb/HT1310
Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
Select Macintosh HD as the Startup Disk.
“Set the default startup disk” http://support.apple.com/kb/HT1310
Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
MacBook Start up slower after getting OS X 10.10.3
