I installed Ubuntu on my Lenovo y50-70.
I did the partitioning part OK I think, and the Ubuntu works OK, but when I try to choose Windows, I get this error: "The Boot Configuration Data for your PC is missing or contains errors."
Windows Boot Manager
Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: 1. Insert your Windows installation disc and restart your computer. 2. Choose your language settings, and then click "Next." 3. Click "repair your computer." If you don't have this disc, contact your system administrator or computer manufacturer for assistance. File: \Boot\BCD Status: 0xc000000c Info: The Boot Configuration Data for your PC is missing or contains errors.
I've tried to reinstall Windows, and then I tried to format the whole computer and restore it to factory's settings, but whenever I get to GRUB Ubuntu keeps popping up and when I try to choose Windows I get the same error.
Apparently grub can't find Windows even though it is there. I can reach it manually when opening the boot menu as suggested here.
Here's the Boot Info Script output: http://paste.ubuntu.com/p/XXbJKmHQWR/