Windows 10 Windows 10 doesn't boot after dual boot: Not even an image appears

[DeletedUser0]

Hello everyone. Hope you are doing ok.

I have an Asus Laptop X407UB with 4 Intel® Core™ i3-6006U CPU @ 2.00GHz processors, 12 GB RAM and 1 TB of disk storage.

Today, I decided to dual boot Ubuntu 20.04 LTS with Windows 10, but, since I installed Ubuntu to my computer, my Windows doesn't even boot anymore.
It was because I installed Ubuntu and Windows 10 at the same partition: Ubuntu occupies half of the partition, and Windows 10 occupies another half.

I wanted to know if I could create a partition and "grab" the Windows 10 data to that new partition.
Any details you want to know, just tell me in the replies.

Thanks for your support!

 

[Neemobeer]

You can't install two OSes on the same partition, there is likely an additional partition containing Ubuntu. You should be able to boot into a Ubuntu rescue disk, remount the partitions as rw, run the chroot command and update grub. That typically should fix boot.

 

[DeletedUser0]

Are there any OS that is used like an Ubuntu rescue disk, and can be installed using Ventoy, or other USB boot software?