MacBook pro doesn't start - Boot progress 99% and shuts down
I'm having problems restarting my MacBookPro.
Last time I used it I did a shut down and finished ok.
Now that I'm trying to start it, it shows me a white background screen with Mac logo and in the bottom a boot progress bar that goes from 0 to almost 100%. Before it get to 100% (seems like 99%) it shuts down. Every time that I try is the same process.
I appreciate your help to know what can I do to complete the boot process and start my macbook
Thanks a lot!
MacBook Pro