On 09/06/2023 17:54, Rodolfo Medina wrote:
...And now I tried even with an MS Windows 10 installation CDROM but the problem remains!
Check what devices are enabled in boot settings in system setup (BIOS or firmware setting).
When you switching off a computer with windows, perhaps actually it performs suspend do disk (hibernate), not shutdown. Alternative boot options may be disabled when system is resumed from hibernation. Ensure that you namely *shutdown* windows. The following page suggests that it may be configured in "System and Security". Perhaps some modifier (Alt or Shift) may unveil additional options related to the power item of the start menu.
https://support.microsoft.com/en-us/windows/shut-down-sleep-or-hibernate-your-pc-2941d165-7d0a-a5e8-c5ad-8c972e8e6eff
