Dell 5260 - no boot device

[Scifigirl]

Pulling our hair out here so any help much appreciated.

 

We cannot get these to boot in UEFI mode. It goes through the process of installing windows (too quickly if you ask me), but then says no bootable device on restart.

 

Any ideas? tried secure mode, non secure mode, updating bios, all sorts of settings in bios but no joy

[Scifigirl]

update - tried a few more things, - bios says its there but does not include it on the list of boot devices.

 

When click on UEFI- add device, it says no file system found-- its like it cant see the drive after rebooting. we have swapped out the drive and the cmos battery, but all we can think is its something in the BIOS

[Mark182]

Does this help?

[LeMarchand]

Not that device, but I've put some Dells onto W10 recently and they do the do and reboot with that error message. If I CTRL+ALT+DEL out of it, they then finish setting up, but NOT if I press F1/retry (or whatever the option is).

[Scifigirl]

Hi we fixed it. despite all the documentation to the contrary - we had to change the win 10 bootable disk to GPT instead of MBR

 

thank you all anyway.