Hey all,
I'm completely new to Ubuntu and Linux itself, and wanted to try it out for code and productivity purposes. I have an existing Windows 10 installation on my main NVME SSD drive, and opted to use a separate sata SSD solely for my Ubuntu 22.04 installation to dual-boot from. However, after I had installed Ubuntu, I could not boot back into Win10 as it seems that my computer doesn't recognize it anymore.
Upon attempting to boot into my NVME drive with Windows on it, instead of successfully booting into windows, I get prompted to "Reboot and select proper boot device or insert boot media in selected boot device and press a key". I do have a usb media drive for Win10 and attempted to try to repair the installation but to no avail.
So I am currently stuck on Ubuntu trying to figure out how I can boot back into Windows without having to wipe the drive it's on and reinstall it.
I went searching around for solutions and Boot-Repair was one that I was pointed to, I have it installed now on Ubuntu and made a pastebin.
https://paste.ubuntu.com/p/T6zktC9HS4/
Which it seems that it did detect my installation of Win10 which I think is a good sign, though I just can't boot back into it.
I haven't done anything else with it yet as it was recommended to post the pastebin here for anyone here to look over before proceeding, so this is where I am now.
I assume my booting problems stemmed from installing Ubuntu 22.04 in UEFI while my main Win10 installation was actually *not* in UEFI which I had assumed it was and instead was in legacy, assuming that I'm reading the pastebin somewhat correctly.
Another possible problem was that during the installation of Ubuntu, I had chosen /dev/sda1 (that being my sata SSD) where I had designated that as the EFI partition instead of /dev/sda as a whole. From the various guides I was reading from it seemed like that was the best course of action but I'm not sure if that had affected things negatively, or if it mattered really because of the point above haha.
Any help or pointers would be appreciated! If you need more information or if I missed something, I'd be more than happy to provide them and clear things up.