Pc don’t allow usb boot

amineer335
amineer335 Member Posts: 1 New User
edited March 18 in 2020 Archives
I installed phoenix OS prime OS ...into my acer aspire E1- 510 but even after disabling secure boot it was always booting to windows. I found a solution on the web which guided me to add a custom boot option by going into the bios and selecting the add a efi file as trusted secure boot option or something like that and i added the grub file of phoenix os and I can now boot with it but now I want to uninstall phoenix os and I would like to know the steps to remove that custom added boot option from the boot menu which comes up when i press f12 during boot. Thanks and any help will be appreciated.