- Dec 28, 2021
- Hp elitebook 840 g1 motherboard
- Intel(R) Core(TM) i5-4300U CPU @ 1.90GHz 2.50 GHz
- Intel HD 4400 Graphics
- OS X/macOS
- Mobile Phone
Before booting to open core a error comes up and then when it boots it does not show installer file please help!