To force a key to be "ON" only if it is currently "OFF," use PowerShell to check the status first.
Windows Batch (.bat) files cannot natively control or check the status of or Num Lock because the CMD language lacks built-in commands for hardware state . To achieve this, a batch file must "spawn" a script using PowerShell or VBScript . Toggling via PowerShell (Recommended) Batch File Caps Lock Num Lock
powershell.exe -Command "IF ([console]::NumberLock -eq 'False') { ... }" Super User To force a key to be "ON" only
powershell.exe -Command "$wsh = New-Object -ComObject WScript.Shell; $wsh.SendKeys('{NUMLOCK}')" Ensuring a Specific State (IF Logic) Batch File Caps Lock Num Lock
You can call a one-line PowerShell command from within your batch file to toggle or force a specific state.
powershell.exe -Command "IF ([console]::CapsLock -eq 'False') { ... }" Super User