Step 1: First of all make sure that this discord is not running on your system. And the icon should not pop up in your system try. And you can also end all of the discord processes in your task manager.
Step 2: After that Simply search in Start Menu
%appdata% in your taskbar search and press enter a new folder will open up where you should find the discord folder. Delete this Discord Folder.
Step 3: Then search in Start Menu
%localappdata% and open this folder again name is discord folder delete this folder.
Step 4: Redownload Discord.
Step 5: After Download, Double click on downloaded file and install discord in your computer.
Step 6: But Make sure the Windows firewall not blocking any parts of the software. And Search Start Menu “Firewall” and open Firewall & Network Protection.
Step 7: In Firewall & Network Protection Click Allow an app through the firewall. And select Change Setting and allow another app Option.
Step 8: And Find Your Discord folder using this path:
ThisPC/Windows(C:)/Users/AppData/Roaming/Microsoft/ Windows/Start Menu/Programs/Discord inc & select the Discord application and select “Open”.
This allows you to exclude the discord application from being blocked by your Windows firewall.