To change the integrated terminal on Windows, you just need to change the terminal.integrated.shell.windows line:
- Open VS User Settings (Preferences > User Settings). This will open two side-by-side documents.
- Check if "terminal.integrated.shell.windows"has value"C:\\Bin\\Cmder\\Cmder.exe"setting to the User Settings document on the right.
- Remove this line.
Ctrl + ~ will now open integrated terminal of VSCode.
If the above solution doesn't work then can you try below values and check if it works for you:
// Command Prompt
"terminal.integrated.shell.windows": "C:\\Windows\\System32\\cmd.exe"
// PowerShell
"terminal.integrated.shell.windows": "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe"
// Git Bash
"terminal.integrated.shell.windows": "C:\\Program Files\\Git\\bin\\bash.exe"
// Bash on Ubuntu (on Windows)
"terminal.integrated.shell.windows": "C:\\Windows\\System32\\bash.exe"
From the Command Palette (Ctrl+Shift+P), use the View: Toggle Integrated Terminal command.
Try custom shortcut:
[
    {
        "key": "ctrl+`",
        "command": "workbench.action.terminal.toggleTerminal"
    }
]