I'm having trouble booting into Windows after I installed Lubuntu. During the installation, I got a warning about the EFI partition being just 100MB, but I ignored it, and now I'm unable to access Windows. I can only boot into Lubuntu. Does anyone know how I can repair or recover my Windows 11 installation?
4 Answers
You should try creating a Windows 11 install media. When I had a dual boot, I set it up with separate drives for each OS and used manual partitioning. This way, they don’t share an EFI partition. Grab a USB, format it in NTFS, and download the Windows image from the Microsoft site. From there, you can copy the contents of the .iso file to the USB, then boot from it to repair your Windows installation.
Make sure to back up any important files from your drives before trying to repair or reinstall Windows, as the process can sometimes lead to data loss. If you can access your Windows drive from Lubuntu, you can copy essential files before proceeding.
You might want to create a USB boot for Windows 11 using a tool like Ventoy. You can install it and start fresh from there. There are ways to potentially fix it without starting over, but it can be time-consuming and might not guarantee a fix.
Just to clarify, is it that Lubuntu is the only option you see when booting? It could be that Windows isn't showing up on the GRUB menu. You should check your BIOS boot menu; sometimes Windows is listed there directly. If it is, try to boot from there. If that fails, you'll need to use Windows recovery tools.
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