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UEFI -- No bootable device found
I have an Acer Aspire 3 A315-21-4808 laptop with Windows 10 (64-bit) version 22H2 that gave up the ghost about 1½ weeks ago. As it is, what I consider, my backup laptop I decided to resuscitate it back to life. But I wasn't going to break the bank on it. I ordered a new battery and a new 1 Tb HDD. So, before people suggest that I could have upgraded to a SSD drive I didn't want a complicated laptop resuscitation, that's why I went the HDD route.
Now to get to the problem. When I tried to install Windows 10 on the UEFI firmware I get a "No bootable device found." But when I changed the firmware to "Legacy" I had no problems installing Windows 10. Can someone explain to me what is going on and if it's possible to get my laptop back to UEFI?
1 Reply
- Peytong1180Iron Contributor
In UEFI mode, your drive needs to be partitioned with a GPT (GUID Partition Table) instead of MBR (Master Boot Record), and the Windows installation must be prepared accordingly. If the drive was previously formatted with MBR, the system won't recognize it as bootable under UEFI.