window partition does not boot after installation

Hi, I just installed Netrunner on a Lenovo Flex 2 machine. It seems all quite good for Netrunner, but grub is not able to start the Windows boot loader, stating there is no image (I do not remember the right answer).
The installation was done automatically, accepting the suggestions of Netrunner at installation.
Any idea?
Thank you all

After awhile a solution. First disabled secure boot by bios setup. Then run “sudo apt-get autoremove”. Now I can boot Win 10, Netrunner (and Maui2 too) from the boot menu.