Date to clipboard, windows

powershell.exe -Command "[datetime]::Now.ToString('yyyyMMdd') | clip"

and ctrl+v to whatever place needed.

By default, PowerShell may prevent running scripts that are not digitally signed. To bypass this restriction, you can open PowerShell as an administrator and run the following command:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned

Making a dekstop shortcut & (global?) hotkey:

Having a script named ‘date.ps1’ someplace, then making a new shortcut with target

 powershell.exe path\to\someplace\date.ps1

and assigning shortcut key:

Ctrl + Alt + D