381      iPhone_iPad_Mac_apple

mac boots to blue screen

how do i boot properly

Your issue has nothing to do with your Apple ID. I will ask the ASC Host to relocate this post to the Mac mini area of the ASC.

In the mean time, booting to a blue screen can mean a number of things, including:

1. Hardware failure
2. Startup drive is not recognized as valid and bootable.
3. Essential macOS software is missing, incorrectly moved or renamed, or corrupt.
4. A firmware update is required.

Wild guess at you MacOS version (I don't think it matters in this case though)

macOS Sierra: If you see a blue screen at startup

最后更新：2017-10-01 03:04:50

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