Oct 15, · Windows 11/10 is a more stable and efficient version of the Windows operating system, but it does not mean that the version is error-free. Just when you least expect it (or when you are in a hurry), errors like the Windows 11/10 inaccessible boot device can happen. What Is the Inaccessible Boot Device Error. In the case of the inaccessible boot device error, the most common culprit is an IDE ATA/SATA controller driver. There are two ways to check for updates. Firstly, you could check the manufacturer's website. Secondly, open Device Manager, expand the IDE ATA/SATA controller sub-menu, right-click on Standard SATA AHCI Controller, and select Update.
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