Linked Questions

9
votes
3answers
69k views

Ubuntu 16.04 - how can I disable Secure Boot?

I have Ubuntu 16.04 installed on a Dell 5470. I want to reinstall it due to some reasons. I want to boot from USB to reinstall Ubuntu. The problem is, I cannot access the BIOS and the boot menu due to ...
1
vote
2answers
10k views

Can't enter UEFI/Bios, Ubuntu loading directly

I've made a dual boot in a Dell Optiplex 7020 with a existing Windows 10. Now Ubuntu is booting directly, grub doesn't seems to load (or if it loads it doesn't show nothing in the menu) and I can't ...
0
votes
2answers
5k views

How to change boot order in grub2 to include bootable USB?

I want to install Windows OS in an empty partition(dual-boot) using a bootable USB. However I can't seem to enter BIOS to change the boot order. Can I include the USB in the boot menu in GRUB2?
1
vote
1answer
4k views

“System bootorder not found” after installation

When I got the laptop it had endless OS on it. I tried to change the OS to Ubuntu 18.04 LTS, and when it asked me what I wanted to do with the drive, I picked the delete everything option (and didn't ...
1
vote
1answer
3k views

(Fresh-)Installed Windows 10 and Ubuntu 17.04, can't dual boot and GRUB is gone

Today I decided to do a fresh install of everything on my desktop computer. It has been dual-booting windows 10 together with Ubuntu 15.10 for some time now. I first installed Windows 10 and made ...
0
votes
1answer
3k views

can't enter bios how can i solve? [duplicate]

I deleted my Ubuntu partition from my Windows 10 drive, but now when I power on the PC, Windows does not start. All I see is "error: unknown filesystem. Entering rescue mode... grub rescue>_", so I ...
0
votes
3answers
1k views

Unable to enter BIOS setup utility before grub bootloader appears

I have a Dell Inspiron 7537 with a Core i7 processor. I used to dual boot Windows and Linux, which was fine. However later, I ended up booting from Ubuntu 16.04, and making that the only OS installed ...
0
votes
1answer
1k views

Install Ubuntu on unbootable Acer Aspire E5-575 “Default Boot Device Missing or Failed.”

Many tries - many errors, much searching, remain clueless... Acer Aspire E5-575 (I can use F2 to get into the BIOS) Trying to: Install Ubuntu Zesty Zapus 17.04 from USB continually get error: Default ...
0
votes
1answer
1k views

Can't access UEFI or boot to Windows 10 after installing Ubuntu 16 LTS [duplicate]

I bought a new dell laptop a couple of months ago that's running Windows 10. I did not install a password. I had heard about the secure boot and disabled it through the UEFI (F12 on startup). I ...
0
votes
1answer
784 views

Can't load Windows 10 on fast boot setting

I updated to windows 10 a week ago. For class purposes, I needed to install ubuntu. I installed ubuntu 14.04, but then had to delete it for some reason. I deletrd the Linux partition feom windows 10(...
0
votes
2answers
636 views

Can't access BIOS on dual boot system 18.04 with Win10

I boot my system and hammer the Esc, F2, and Delete keys. The system flashes the Lenovo logo for a split-second, and then goes straight to GRUB. I continue hammering the F2 key and the system will ...
2
votes
1answer
244 views

How to get to the GRUB menu in Ubuntu 19.04?

How do I break into the GRUB menu when booting a single-boot Ubuntu 19.04 system? I've tried all of the key combinations I can find online (Esc, Shift, Space, c) and nothing keeps the system from ...
0
votes
1answer
364 views

Ubuntu Desktop 18.10 UEFI not booting - cannot install

Neither live CD nor USB image does boot in UEFI on my system. Black screen, that is all, no grub-efi does show up. So, not even coming close to the point to install or reinstall. With 18.04 UEFI ist ...
0
votes
0answers
352 views

Ubuntu update made machine unbootable

I have upgraded my ubuntu to latest (18.04) on a dual boot HP Pavilion. The windows 10 partition has been unbootable for some time and now both partitions are unbootable. After the ubuntu upgrade ...
0
votes
0answers
340 views

Grub rescue error: Installed Ubuntu in Legacy alongside Windows10 in UEFI

Sorry for asking an already asked question, but I couldn't find anything that solved my problem. I did an extensive research on the internet (many users had similar problems) still I'm not able to fix ...

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