Macbook Pro Desktop Not Loading Upon Booting

Resetting NVRAM

1. Shut down your Mac.
2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
3. Turn on your Mac.
4. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
5. Hold these keys until the computer restarts and you hear the startup sound for a second time.
6. Release the keys.

Well this is a tough one then. When you repaired the disk, did you boot to the Recovery drive to do so? Same question with the reinstall. Did Disk Utility show any errors or say anything to the effect of, " The disk (your disk name) could not be repaired?"

This issue sounds like it would be fixed by reinstalling the OS unless it is caused by a third party application/start up item. If it is something third party, a Safeboot would block it. Has anything happened recently that may have caused this issue? Dropped the computer, deleted unknown files, downloaded software, etc...?

One really simple reset is the NVRAM. This reset helps with stuck/old caches that could be causing an issue. It can also help if the computer is having trouble with the startup disk it is using. Really simple reset that can fix a lot of strange computer issues. Try it out and let me know.

Please try to give as much specific info as you can. I ask questions because the answers could be important to resolving your concern.

How to Reset NVRAM on your Mac - Apple Support

To clarify, you can actually log into your account, it just doesn't load everything after you've logged in correct?

If you have already reinstalled the OS and repaired the Disk/Permission, then it sounds like this could be related to something third party. Try a Safeboot and see if you can log in. Power your computer on and hold shift until you see the apple with a progress bar. It will say "Safeboot" in red letters in the top right of the screen if it worked. See if you can log in now.

If that doesn't work, log into another account if you have one and see if that works.

Best of luck

Try it again. That means you are hitting Command + R to soon and the computer is not registering the Option and P.

I press Option + Command + R with my left hand, and with my right hand, push the power then quickly move to P.

This is one of those resets that will always work unless your computer has no power. Even if you have a completely wiped hard drive this reset will work.