Grub Problem: Can't boot into Windows

I was playing around with Linux (live Manjaro USB) and the way it seems, I accidentally installed parts of grub on hard drive with Windows. Now I can't boot into it (Win10). When I try to do it, I get "unknown filesystem" and grub rescue command line (my keyboard doesn't work there).

I tried to repair grub in live Usb with
Code:[manjaro@manjaro ~]$ sudo update-grub
/usr/bin/grub-probe: error: failed to get canonical path of \overlay'.\PS Really new to Linux, was using it for three days.