I have tried to turn my macbook on and all i am getting when i push the power button is an apple logo and a loading bar which when it loads macbook turns off. I need this to do ubiversity work. Helplo!! It wont even let me atart it in safe mode.
MacBook Pro
It would be very helpful if you indicated the EXACT model/year MBP that you have and the OSX.
Your MBP probably has a faulty HDD or the SATA connection to it.
Ciao.
Macbook pro 13inch mid 2012
OS X mavericks 10.8.5
Try resetting the SMC and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
Boot to Recovery and try repairing the startup disk
OS X: About OS X Recovery - Apple Support
Reinstall OS
why does my macbook pro 2012 try to start up with an apple logo and loading bar and then turn off?
