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I've been having problems with Ubuntu recently. Namely, every proprietary driver I installed caused the system to hang hopelessly and indefinitely after suspending or closing the lid on my Inspiron 15 7559. I have made the decision to remove Ubuntu and use only Windows 10, which until recently I had been dual-booting.

The first problem:

I deleted the ~400GB partition dedicated to Ubuntu and merged it with the C: drive, and I removed the GRUB bootloader. Windows boots normally but when I press 'F12' on startup, the 'ubuntu' option is still there. This option boots into Windows, but I still want it removed.

The second problem:

In my attempt to coax my graphics driver to function properly, I added 

GRUB_CMDLINE_LINUX="acpi_backlight=native acpi_osi="

to the GRUB. And even though the system no longer boots through the GRUB menu, the backlight during boot up is extremely dim.

I have tried creating a Windows USB and running

bootrec.exe /fixmbr

Afterwards, I am told "The operation completed successfully," but in truth, this does absolutely nothing.

Irregular Square
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1 Answers1

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I think, you get the UEFI boot menu option with 'ubuntu' string. You have to go to the UEFI(BIOS) setting and look for 'Boot options' there you can delete the 'ubuntu' option.

Evgeniy Yanuk
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