When you turn on mac book sometimes getting error like ” The macos installation couldn’t be completed” banner appear on screen while boot up.
![](https://i1.wp.com/sukheshcs.com/wp-content/uploads/2019/02/2-1.jpg?fit=1024%2C768&ssl=1)
![](https://i0.wp.com/sukheshcs.com/wp-content/uploads/2019/02/4.jpg?fit=1024%2C768&ssl=1)
Fix this error – Press and hold option button + restart.
Then after restart you can find two boot location path. choose orginal macbook HDD path then bootup.
![](https://i2.wp.com/sukheshcs.com/wp-content/uploads/2019/02/5.jpg?fit=1024%2C768&ssl=1)
Avoid such type error you should update latest release of OS or combo updates.