To check if a file is empty using PowerShell in Windows, you can use the following command:
if ((Get-Item 'path\to\your\file.txt').length -eq 0) { Write-Host "The file is empty." } else { Write-Host "The file is not empty." }
Replace 'path\to\your\file.txt' with the actual path to your file. This command checks the length of the file. If the length is 0, it means the file is empty; otherwise, it contains some data.