Taskbar Issue for My App

Question

When I click on my Winforms app then its forms are opened in separate section in Taskbar with default C# icon. How can I solve this issue?

Update:

At first I open my login form as bellow:

Application.Run(new frmLogin());

Then I open my main form from the login form as bellow:

this.Hide();
frmMain frmMain = new frmMain();
frmMain.Show();

Answer 1

This sounds like a system problem. Here are 3 solutions:

1. Restart your computer.

2. Restart explorer.exe or File Explorer. How to do it.

3. Unpin then re-pin your program on the taskbar.