Before the problem appeared I had Ubuntu 16.04, Windows 10 and GRUB installed. But then I attempted to install CentOS7 on a separate partition and broke everything. After all my manipulations I have lots of .efi files (including CensOS's ones, but no CensOS itself) and Ubuntu booting correctly. But Win10 disappeared from GRUB menu, and so I can't boot it. Last things I tried:
Hope to get help, thanks.