Try 5 different USB 2.0 drives (HP, Sandisk, Kingston): Since in a video they think that the problem with this black screen warning is due to USB. I have been searching for ways to install Windows 7, without success. No bootable device - insert boot disk and press any key The installation was correct and without errors, after that I installed the updates from the App Store following the steps of the support website for the installation of Windows 7 from macOS High Sierra with Boot Camp: įollowing the process above, Boot Camp created the installation drive, the disk was partitioned during the process and when the computer restarted, this error appeared: I used this video as a guide to install macOS High Sierra: A couple of weeks ago I decided it was time to do a clean install - from scratch - of my macOS High Sierra and Windows 7 operating systems installed on my MacBook, after a year of use.
