- Joined
- Jan 4, 2018
- Messages
- 45
- Motherboard
- HP EliteBook 840 G1 - OpenCore
- CPU
- i5-4300U
- Graphics
- HD4400
- Mobile Phone
I have a HP Elitebook 840 G1 and I tried to update a second installation of macOS High Sierra that I have on an external hard drive, but every time it reboots to install it shows the Apple logo and a progress bar, the progress bar goes halfway and then stops and the Apple logo turns into a prohibition sign and nothing else happens.