macbook pro stuck loading in after logging on

It's possible that one of your login items is corrupted.

Try the following:

• Allow your Mac to boot up normally to the logon screen.
• Enter your password, but DON'T click on Login yet.
• Hold down the SHIFT key, and then, click on the Login button. (Note: This should bypass any login items in your user profile.)

Does your Mac continue to the Desktop screen now?

It just stuck after loading 100% after entering password and logging in. I have tried every method to fix this (reset nvram, run in safe mode, repair hdd, reinstal OS etc.) but still helpless. (Macbook pro mid 2012)

Please try the following, in order. Stop at the step where the issue is resolved:

1. Reset your Mac's SMC.

   Reset the System Management Controller (SMC) on your Mac - Apple Support

2. Reset your Mac's NVRAM.

   How to reset NVRAM on your Mac - Apple Support

3. Boot up your Mac in Safe Mode.
   • Try safe mode if your Mac doesn't finish starting up - Apple Support
   • Use safe mode to isolate issues with your Mac - Apple Support

I am having the same issue after I did the latest update on my MacBook Pro. I have tried all the suggestions & nothing is working. I don’t know what else to do! This is so aggravating I’ve been dealing with trying to fix it all day!

Good try but no joy. I've used Safe Boot - (Shift key), the Apple Hardware Test - (D key), Reloaded the system, (Command key and the R key), Reset the NVRAM, (The Option, Command, P and the R key keys - hitting all 4 keys at the same time just after the boot ring takes a lot of planning!) and finished off with the Verbose mode (Command V). The Verbose model showed no Unix errors. I only read the last 10 pages of the Unix code preceding the freeze. I'm on 10.13.3. With all the security issues I'm careful about keeping up with security updates.

Thanks, this helped me.

On login the loading bar would eventually go all the way across and then stay there forever.

After resetting the SMC, the SHIFT login got me to the desktop where some Logitech mouse or keyboard app was prompting to be updated. Since Logitech devices weren't being used anymore on that Mac, I simply uninstalled the app (I found the uninstaller in Applications/Utilities).

Login now works and is snappy.

Has anyone found a solution to this problem? It happened to me today with my 2012 MacBook Pro. Gets to the login and then hangs up.

It was working fine until I moved the mouse to the dock and then it hung for about 10 seconds and then logged me out. Has been doing this for some months now since one of the High Sierra updates. Normally it would just allow me to log in again but this afternoon it fails every time. Reset the NVRAM and so on, tried restarting in safe mode but still hangs, spent many hours reinstalling the OS but still the same problem.

I suspect it it is an Apple OSX thing which has been very shaky the last six months or so. Very annoying as I am self employed and rely on this computer to do my job.

Any help? (Having to type this on my old iPad!!!)

During the boot up process where the progress bar appear, your Mac is attempting to load kernel extensions. Most of these will be third-party device drivers.

I would suggest that you uninstall any devices that you are using with your Mac and download and install the very latest drivers that support the version of macOS running on your Mac directly from the device manufacturer sites.

Even after all these steps my log in screen remains unchanged. It is still frozen at the maximum loading kernel stage which means I have not been able to log in to try and remove third party kernels.

I have tried:

A) starting in safe mode

B) an extended diagnostics

C) option command p r

Have I missed anything?

I managed to solve the problem, but it was rather drastic and requires a time machine backup. I wondered whether the hard disk had developed a fault, despite diskcheck saying it was ok, because I could hear it cycling through a repeated sequence when I put my ear to the Macbook, usually a sign that it was unable to read a sector. So I replaced the hard disk, by opening up my Mac with a screwdriver (removing all the little screws underneath) and taking out the hard disk. It is a standard SATA disk and I bought a replacement (a Toshiba 500 GB 2.5" which I believe is what is used in the 2011 Macbook Pros - in fact it looked identical to my existing har ddisk), plugged it in and closed up the Mac. When I rebooted I either held the shift key down or the R key (can't remember now but it is referred to online) to start in recovery mode. You get some options, one of which is to reformat the hard disk, which I did to standard OSX journaled. Then I selected restore from time machine and waited 10 hours. Once the system was restored everything seemed to work fine from then on. However, the machine did "crash" once, again when I moved the mouse to the dock to open a program. Before I even got to the program the dock crashed for about 10 seconds and then the systen logged me out. But this time I was able to log in again.

Ho hum ... I hope Apple come good again. I left Microsoft some years ago as the Apple products were better, but now I am not so sure. And they are hideously expensive too.

Please start a new post. Although the issue you are having may be similar to the OP's, the solution may require a different approach. Also, include as much information as possible in your post.

Include:

• The exact model of your Mac.
• The version of OS X or macOS that it is running.
• A full description of what you are seeing when you boot it up.
• Did you try using Recovery mode?

Oh - by the way, I restored to the day previous to the crash in case whatever got corrupted was also recorded in time machine. Call me paranoid but I just don't know how time machine maintains the data and whether or not it checks for corrupted files.

Thanks for that, I will look at that myself and good idea on the Time Machine back up. I agree with Apple at the moment it is getting ridiculously expensive and others are catching up both in product and design and costs which are waaay less.