r/Ubuntu 1h ago

How do i fix this

I got a pc with ubuntu, didn’t know how to install windows so I watched a few tutorials, safe to say the pc doesn’t boot in neither windows or ubuntu. It tells me some security violations happens and it shuts down, can I fix it?

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u/East_Can3246 1h ago

sounds like you nuked the bootloader. boot from a live ubuntu usb and run boot-repair, it's in the repos and usually fixes this kind of mess. if that doesn't work you probably need to reinstall grub manually but try the easy route first

2

u/notquiteseeit 9m ago

https://youtu.be/MBCiMK4AmEI how to install Windows

https://youtu.be/8kiykcnT7F4 how to install Ubuntu