Q: progress bar loads partway then shuts down

Take a look at the steps suggested by Apple in this article:

If your Mac won't turn on - Apple Support

Try Safe Boot:

- Shut down your Mac

- Wait until your computer turns off and after that press the Power button

- Right after you hear the startup tone, press and hold the Shift key

- Release the Shift key when you see a grey Apple sign and the progress bar below this sign

- After your Mac boots up, restart it as you usually do.

If this doesn't help, follow the instructions below:

- Shut down your Mac

- Wait until your computer turns off and after that press the Power button

- Right after you hear the startup tone, press and hold the Shift key

- Release the Shift key when you see a grey Apple sign and the progress bar below this sign

- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)

- Click on Verify Disk and then, if asked to fix problems, on Repair Disk

- After this, click on Verify Disk Permissions and then on Repair Disk Permissions

- After the process is finished, shut down your Mac and turn it back on after about 30 seconds

Apart from that, take a look at this Apple article and follow the instructions on Resetting NVRAM shown there: How to Reset NVRAM on your Mac - Apple Support

Try resetting the System Management Controller: https://support.apple.com/en-us/HT201295

Hope this helps!

If it is still the same after d.cohen's suggestions, download etrecheck  from  www.etrecheck.com

run it and post the list here.

question 1: did you ever changed or add the Ram?

question 2: is your graphics issue repaired already? https://www.apple.com/support/macbookpro-videoissues/

Lex

Boot into the recovery partition (COMMAND +R):

https://support.apple.com/en-us/HT201314

From the 4 option menu, select Disk Utility.

Run Disk Utility>First Aid, Verify and Repair.

Ciao.

Only when he does not have ElCapitan. Ciao.

Lex