BitlockerDecryptionStatus.ps1

# Get-BitLockerVolume | ForEach-Object { Disable-BitLocker -MountPoint $_.MountPoint } # if you want to decrypt all drives

while ($true) {
    # Run manage-bde -status and process line by line
    cmd /c 'manage-bde -status' | ForEach-Object {
        
        # If the line indicates a Volume line, just display it
        if ($_ -match '^Volume [A-Z]:') {
            Write-Host $_
        }
        # If the line shows the Percentage Encrypted, parse & compute decryption
        elseif ($_ -match 'Percentage Encrypted') {
            # Extract the numeric portion (including decimals if present)
            $match = [regex]::Match($_, '(\d+(\.\d+)?)%')
            if ($match.Success) {
                $encryptedValue = [double]$match.Groups[1].Value
                $decryptedValue = 100 - $encryptedValue
                Write-Host "Decryption State: $decryptedValue%"
            }
        }
    }

    # Sleep for 5 seconds before repeating
    Start-Sleep -Seconds 5
    clear
}