I have a work laptop that had an encrypted partition with Windows 7 and I wanted to dual boot it with Loki. I installed Loki, but during the installation process it told me that I couldn't install it with UEFI without damaging the MBR or something or another, I can't recall. So I went back and partitioned it manually by shrinking the windows partition (within windows) than restarted the installer and made a swap, boot and home partition for Loki and installed Loki. The installation went fine and Loki runs perfectly, but when I boot the computer, I can't choose between Loki and Windows, so I can't boot into Windows anymore, can anyone help me with this?
I'm no expert, but have you tried this? Boot-repair
It worked for me in previous problems i had
I had boot problems too, but in my case I could only boot Windows. I recommed you to try rEFInd. Once installed, it should recognize all your OSes and let you choose which one to boot.
First of all, you should try to unhide your grub menu.
- Comment the line
GRUB_HIDDEN_TIMEOUT=0(put a # in the beginning)
GRUB_TIMEOUT_STYLE=menu(instead of hidden)
- Open terminal and do:
- Reboot and you should see Grub menu. Select Windows and see if it boots.
If it doesn't boot, you should repair your Windows MBR. There is a comprehensive guide here: https://neosmart.net/wiki/fix-uefi-boot/
And after repairing your Windows MBR, you need Boot-repair to get Elementary to boot and then again, you need to unhide your grub menu with the steps i described above.
This happens to me everytime i install Elementary in a Windows 10 UEFI dual-boot. I have to repair Windows MBR, run boot-repair and unhide Grub from Elementary. It may seem boring and time-consuming, but you can do it under 20 minutes.