There isn’t a way to start Windows 10 once you’ve set up Ubuntu.
There isn’t a way to start Windows 10 once you’ve set up Ubuntu.
Usually Ubuntu will recognize the current Windows setup and include it as a boot choice. Just make sure you didn’t wipe the entire partition and didn’t delete the Windows files.
I had Windows already set up. I saved the Ubuntu ISO using Rufus and it worked fine for the first part—I could have switched back to Windows but chose Linux instead. I revisited a YouTube tutorial, which suggested either installing Windows alongside or completely erasing the drive before installing Ubuntu. Since I had two drives—one with Windows and another with Ubuntu on an HDD—I followed the steps carefully. Ubuntu functioned properly after installation. However, when trying to boot back into Windows, the menu didn’t appear. I accessed UEFI (BIOS) and attempted to change the boot drive, but the SSD wasn’t detected. I checked Storage Info and confirmed the SSD was present in the PCIe slot. There were Windows files on it, but nothing else. I tried updating GRUB, but it didn’t make a difference.
Dual booting can really be frustrating. It seems the boot menu might be missing in Windows. You could try updating the bootloader with the Windows installer, though I can't promise it will work.
During installation, did Ubuntu indicate "install alongside Windows"? Choose your Windows drive from the UEFI boot menu, or disconnect the Ubuntu drive. If that doesn’t work, create a Windows install media and attempt to fix it—this may overwrite the bootloader. Still unsuccessful? You might have corrupted Windows, requiring a full reinstall. Ensure only the intended drive is connected during setup. Afterward, in Ubuntu, run sudo os-prober and sudo update-grub to check compatibility.