I have a dual boot system setup with Windows 10 and Ubuntu 16.04, when turning on my PC grub shows correctly, Windows and Ubuntu are recognized, no problems there. Every time there's an update or i have to install something, I keep getting this error:

```
Errors were encountered while processing:
 grub-efi-amd64-signed
 shim-signed
Setting up shim-signed (1.12+0.8-0ubuntu2) ...
Installing for x86_64-efi platform.
grub-install: errore: cannot find EFI directory.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up grub-efi-amd64-signed (1.66+2.02~beta2-36ubuntu3) ...
grub-install: errore: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 subprocess installed post-installation script returned error exit status 1

```

Can I just ignore it or do is there something I can do to fix it?