How to fix inaccessible boot device blue screen error after new Motherboard install?

Answer:

INACCESSIBLE_BOOT_DEVICE fixing it

Unless the new motherboard is the same chipset/model as the old one, Windows will not be able to boot up. The Windows HAL [Hardware Abstraction Layer] must be reconfigured to use your new motherboard.

First back up all of your data! Afterwards, try running a windows repair using your Windows install disk. If this does not correct the problem, you will need to do a fresh install of Windows.

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First answer by IndustrialG33k. Last edit by IndustrialG33k. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 38 [recommend question].