Windows 10 and Ubuntu 20.04 Dual Boot - Screen distorted when booting OS

If you have Ubuntu and Windows dual boot system and often your screen gets distorted while booting into the Windows 10.

Windows is booting in background and you see above screen.

Here is the solution for you.

1. Boot into Ubuntu.

2. Edit file /etc/default/grub in ubuntu 20.04
and uncomment following line

GRUB_TERMINAL="console"

3. Now run command

sudo update-grub

4. Now boot into windows 10.

Boot selection screen will be visible without any graphical effect and above issue will be resolved.