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Dell UEFI cause shut down to fail in windows
Hi All,
On certain Dell machines (different models), I have seen that Windows 10 (1803) fails to perform a full shut down after the BIOS has been changed to UEFI Boot. I know for certain that this is a fact after the following tests on an E4310:
1. There were no such problems with 1703 version of Windows (or earlier - including W8 and W7).
2. The problem didn't occur in 1803 either, as long as the boot mode was set to legacy.
3. As soon as the boot mode is set to UEFI, any Windows 10 (1803) mode fails to shut down the computer. This includes the following modes:
a) Safe Mode
b) USB or CD/DVD installation media
c) Recovery mode
At first, I thought it might have something to do with the GPT disk format, but even booting without a disk, just using a USB setup/installation memory stick causes the same problem as long as the stick has the 1803 version and UEFI boot is selected. Booting into BIOS mode alone doesn't help. The BIOS has to be set to legacy boot. Then everything works ok.
I have searched the internet for weeks and moths without finding any help with this. So now I'm trying this forum.
Rgds
Viking