Windows 10: Dual boot with linux: only linux boot

Hello,

Well I'll sum up what I did so far:

I had ubuntu + windows 10, was working fine but ubuntu was taking too much space on my drive.

Deleted ubuntu partitions, gave the space back to windows, boot into the windows usb drive to perform the bootrec /fixmbr,fixboot commands
Although bootrec /scanos didn't detect any windows installation...I think that's why it doesn't work now. Did the rebuiuldbcd, didn't do anything either.

Anyway at this point I rebooted and it worked like a charm, my windows was loading properly everytime.

Now I installed mint after having an issue with "grub-efi-amd64 package failed to install to /target/"
In order to solve this I had to do something quite ballsy to me at least

I have an SSD 256GB with windows on it and a HD 2TB on which I wanted to install linux
for some very strange reason the boot partition was apparently on the HD, which is weird I would assume it's would be on the SSD
Anyway I deleted the NTFS boot partition and created a 500MB FAT32 boot + esp partition instead
After setting this to be the boot partition it worked, the installation finished successfully

Then reboot, at first I had no grub menu and it was booting directly to mint, searching the web I ended up modifying the etc/default/grub file and perform a grub-update

worked, I now have the grub menu but no windows is listed

I tried to run the repair-boot application, it worked, reinstalled everything, but still no windows

os-prober doesn't return anything
Only linux is listed when performing the grub-update command

fdisk -l command

CODE: SELECT ALL

Disque /dev/sda : 1,8 TiB, 2000398934016 octets, 3907029168 secteurs
Unités : secteur de 1 × 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 4096 octets
taille d'E/S (minimale / optimale) : 4096 octets / 4096 octets
Type d'étiquette de disque : dos
Identifiant de disque : 0x6eefb801

Périphérique Amorçage Début Fin Secteurs Taille Id Type
/dev/sda1 * 2048 1026047 1024000 500M ef EFI (FAT-12/16/
/dev/sda2 1026048 3789838335 3788812288 1,8T 83 Linux
/dev/sda3 3789838336 3805462527 15624192 7,5G 82 partition d'éch
/dev/sda4 3805462528 3907028934 101566407 48,4G 83 Linux




Disque /dev/sdb : 232,9 GiB, 250059350016 octets, 488397168 secteurs
Unités : secteur de 1 × 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 512 octets
taille d'E/S (minimale / optimale) : 512 octets / 512 octets
Type d'étiquette de disque : dos
Identifiant de disque : 0x6eefb808

Périphérique Amorçage Début Fin Secteurs Taille Id Type
/dev/sdb1 2048 486547455 486545408 232G 7 HPFS/NTFS/exFAT
/dev/sdb2 486547456 487469055 921600 450M 27 TFS WinRE masquée
/dev/sdb3 487471104 488392703 921600 450M 27 TFS WinRE masquée


Disque /dev/sdc : 3,8 GiB, 4009754624 octets, 7831552 secteurs
Unités : secteur de 1 × 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 512 octets
taille d'E/S (minimale / optimale) : 512 octets / 512 octets
Type d'étiquette de disque : dos
Identifiant de disque : 0x2f9b3b55

Périphérique Amorçage Début Fin Secteurs Taille Id Type
/dev/sdc1 * 63 7831551 7831489 3,8G c W95 FAT32 (LBA)
I've looked on the internet but I have to say that I'm stuck, it may have something to do with the windows side of thing, but still, the issue is in grub so I'm unsure.

I'll highly appreciate any assistance.

Thanks,

:)

 

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