My macbook pro crashes after i log in. What should I do?

Possible Fixes for El Capitan and Later Installations

You should try each, one at a time, then test to see if the problem is fixed before going on to the next.

Be sure to backup your files before proceeding if possible.

1. Resetting your Mac’s PRAM and NVRAM
2. Reset the System Management Controller (SMC)
3. Start the computer in Safe Mode, then restart normally. This is slower than a standard startup.
4. Repair the disk by booting the from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volumeentry from the side list. Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and returnto the Utility Menu. Restart the computer from the Apple Menu.
5. Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button below Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
6. Install Combo Updater Download macOS Sierra 10.12.2 Combo Update and install.
7. Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Reinstall OS X then click on the Continue button.
8. Erase and Install OS X Restart the computer. Immediately after the chime hold down the Command and R keys until the Apple logo appears. When the Utility Menu appears:

1. Select Disk Utility from the Utility Menu and click on Continue button.
2. When Disk Utility loads select the drive (out-dented entry) from the Device list.
3. Click on the Erase icon in Disk Utility's toolbar. A panel will drop down.
4. Set the Format type to Mac OS Extended (Journaled.)
5. Click on the Apply button, then wait for the Done button to activate and click on it.
6. Quit Disk Utility and return to the Utility Menu.
7. Select Reinstall OS X and click on the Continuebutton.

If you have enabled iCloud Disk and are storing your Documents and Data in iCloud, then consider turning that off and signing out of iCloud. It can slow down the computer considerably. Please see the following from the user, fotomac: "The solution was to SIGN OUT of iCloud and my problem STOPPED! NO MORE SPINNING BEACHBALL! My computer's speed increased to what it should be and all my Apps now work!"

Here's a few things you can try:

1. Disconnect any peripherals from your MacBook Pro. External drives, printers, etc. Try booting up normally. If it can, then one or more of these devices may be the issue. If it still cannot boot up, go on to the next step.
2. Reset your laptop's PRAM. Reboot, but this time, hold down the following keys: <Option><Command><P><R>. Release the keys once the system resets and sounds the boot chime again. If it cannot boot up normally after the PRAM has been reset, go on to the next step.
3. Verify and Repair the laptop's internal hard drive. Boot up in Recovery Mode <Command><R>. Then select the option to use Disk Utility. Run the utility and perform a disk repair. After the repair has completed, try booting up normally again. If it still can't, go on to the next step.
4. Reinstall OS X.

Typically, when a Mac "crashes" after you enter your logon credentials, one or more of the login items may be the culprit.

These startup items are identified in: System Preferences > Users & Groups > Login Items

Checking any item will disable it. I suggest that you start by checking them all. Since you will not be able to login, try starting your MacBook Pro in Safe Mode. Hopefully, you will be able to login now. If so, check each of the items, and reboot, your Mac in its normal boot up mode. If you can now successfully login, try re-enabling one item at a time until you find the one that is giving you trouble. You can remove this item from the Login Items list to prevent it from future logins. You can then decide to remove the application that is causing the issue from your Mac.

Hi

happy new year..

I have the same problem with my MacBook Pro 13inch late 13 model. Ive tried all the above steps including disabling login items. I can only use the computer in safe mode.. Any help is appreciated.

Bets wishes

You have no Recovery HD on the drive. You need to provide more complete information than you have because your problem is not the same as the OP. Please post your own separate topic rather than hijacking this one.

At this point, I would suggest that you make a Genius Bar appointment at your local Apple Store to have them take a look. Unfortunately, being a 2011 model, any repair costs will not be covered by Apple, but you may get OS X or macOS reinstalled at no cost.

I'm having the same issue except after I hold the command and r keys downs no menu pops up. Just a flashing folder with a question mark. Do you have any suggestions?