[SOLVED] “Reboot and select proper boot device”

Feb 17, 2019
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So I literally built this PC a day ago everything was going fine until it randomly gave me that messenge and I’ve tried changing the boot device options in the bio but nothing works i had Windows 10 installed on my SSD so if possible Can anyone help

Motherboard is : MSI B450 Tomahawk
 
Solution
Is your SSD plugged into SATA-0? Unless you're using an M2 drive (which I don't think looks to be the case here), then the primary boot drive should always be plugged into SATA--0 or it will ask you to select the boot device.