When I turn on my MacBook Pro will not boot up but it will have the loading gear revolving and the apple symbol is crossed out

After installing ProTools 10 and I have a drivers I tried to restart my MacBook Pro, but it will not boot up. It was just working fine and I restarted it because I ran a java upgrade and it will not boot. I tried to cold boot it, but it still allows me to login in pass the encryption login the the loading symbol keeps revolving and doesn't stop.

If you've activated FileVault, only the users that were authorized to unlock the startup volume will appear in the pre-startup authentication dialog. Once the system has started up, all users will appear in the login dialog.
To authorize more users after the volume has been encrypted, select the FileVault tab in the Security & Privacy  preference pane. Click the lock icon in the lower left corner and authenticate to unlock the settings, if necessary. Click Enable Users...
You should only enable users whom you trust implicitly with all data on the system, not just their own data.

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