I just update my mint box and as it was running through upgrade a box appeared. I thought to myself 'default is good' so I pressed enter. Then some text appeared saying:

Configuration file '/etc/grub.d/10_linux'

==> Modified (by you or by a script) since installation.

==> Package distributor has shipped an updated version.

What would you like to do about it ? Your options are:

Y or I : install the package maintainer's version

N or O : keep your currently-installed version

D : show the differences between the versions

Z : start a shell to examine the situation

The default action is to keep your current version.

*** 10_linux (Y/I/N/O/D/Z) [default=N] ?

update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults

Setting up grub2-common (2.02~beta2-36ubuntu3.9) ...

Setting up grub-pc-bin (2.02~beta2-36ubuntu3.9) ...

Setting up grub-pc (2.02~beta2-36ubuntu3.9) ...

Installing for i386-pc platform.

Installation finished. No error reported.

Generating grub configuration file ...

Found linux image: /boot/vmlinuz-4.4.0-53-generic

Found initrd image: /boot/initrd.img-4.4.0-53-generic

Found memtest86+ image: /boot/memtest86+.elf

Found memtest86+ image: /boot/memtest86+.bin

Found Windows 10 (loader) on /dev/sda1

Found Windows 7 (loader) on /dev/sda2

done

(I'm mnot really sure where the question window appeared I just know I saw when it said

'Setting up grub-pc (2.02~beta2-36ubuntu3.9) ...

Installing for i386-pc platform.

(to be honest I thought it said 'setting up grub for an i386)

I have a 64 bit computer. Do I need to worry? If it is wrong what can I do to fix it?

:-)~MIKE~(-: