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Recently I've had login loop problem, even after trying several solutions given in the forums. I ended up installing Gnome as suggested here as Solution 3.

After rebooting, the desktop changed to Ubuntu Gnome, but still didn't solve the loop problem. then I went to BIOS and changed the boot priority to another option, didn't work, then again came back to previous priority and now I can't even access to that login screen. When I switch the computer on I have purple screen suggesting *Ubuntu, Advanced options for Ubuntu, and System setup. Once I hit *Ubuntu it goes through some processshown here Then the screen gets dark for about 4 seconds and quickly shows up this] for a very very short time (can't even see with natural eyes)[3] And this repeats infinitely.

I think I corrupted the Ubuntu system by trying too many things.

How can I solve this case? If there is no way,How can I uninstall Ubuntu from my computer without damaging Windows system?

Thank you for your time and advice!

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  • when I type something, I can see them written after login: as in the second image, but I can write only when it is shown. If I use Ctrl + alt + f1, I can type for a short time, then it gets dark again. when I hit the power off, it shows Starting WPA supplicant, OK (in green), Started WPA supplicant. then it is switched off with strange noise- like a rupture. Jan 18, 2017 at 1:00
  • This answer to your original boot problem would have resolved it. The steps will most likely still resolve the problem even after your recent experiments. Jan 19, 2017 at 0:31
  • @L. D. James. Those 11 commands should be written to the terminal which is accessed through Ctrl+Alt+F1, right? Although it blinks and writing something is only possible when it is shown? Jan 19, 2017 at 5:19
  • I'm sure, as I mentioned the linked answer would resolve your issue. If you have problems or questions about it, it would be better for the community to place the comments where the answer is. This way if the answer, for some reason, doesn't work it could be fixed there. Others with similar issues will find it easier to follow the resolution by following the comment. Others that are contributing to the fix would find it be able to easier add their input. Nice your taking the time to look at it. If for some reason it doesn't work (which I consider very unlikely) I would like to know. Jan 19, 2017 at 7:49
  • I think it is not working. When I typed sudo mount /dev/sda6 /mnt/boot/efi it is showing mount: mount point /mnt/boot/efi doesn't exist Are you taking into consideration that I am not able to write these code blocks to normal terminal because of flickering of the terminal. I am writing these things after forcing the terminal to show up every time by pressing ctrl+alt+f1. Jan 19, 2017 at 13:11

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