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Feb 20, 2021 at 15:51 comment added JW0914 @harrymc I wasn't aware BootRec will cause issues with GRUB and I've edited your answer with a whitespace so I can switch my downvote to an upvote
Feb 20, 2021 at 15:51 history edited JW0914 CC BY-SA 4.0
added 1 character in body
Feb 11, 2021 at 7:03 comment added Joseph Chataignon complete logs for the filesystem check of sda2 say the superblock could not be rad or does not describe a valid ext2/ext3/ext4 filesystem
Feb 11, 2021 at 6:55 comment added Joseph Chataignon I tried the following options from Rescatux, unsuccessfully: File system check: - sda1 (windows efi): OK - sda2 (windows reserved partition 16 Mo, no filesystem): ERROR filesystem check with automatic fix failed - sda3 (windows OS): OK - sda4 (recovery, I guess? ntfs 875Mo): OK Reinstall Microsoft Windows UEFI: - WARNING: backup of EFI directory went wrong - ERROR: the reinstallation of Windows UEFI boot entries went wrong
Feb 10, 2021 at 16:57 comment added harrymc Try perhaps Rescatux. You can create it from Linux.
Feb 10, 2021 at 16:53 comment added Joseph Chataignon The disk is formatted as GPT, I'm not sure about EFI but I have an option about UEFI in the GRUB booting menu. I don't have a Windows installation media (I tried to create one but it didn't work, I might retry).
Feb 10, 2021 at 16:25 comment added harrymc Does your computer use EFI, and is the disk formatted as MBR or GPT? Do you have a Windows installation media?
Feb 10, 2021 at 15:51 comment added Joseph Chataignon I tried it but still the same blue screen. For some reason I don't have the option "place the boot flag on", but I added the boot flag on the efi fat32 partition with GParted
Feb 10, 2021 at 15:06 history answered harrymc CC BY-SA 4.0