Windows系統清除占用的串口號列表批處理

蛋疼總是無緣無故被占用

@echo off 
reg query "HKLM\SYSTEM\CurrentControlSet\Control\COM Name Arbiter" /v ComDB
if %errorlevel%==0 (
    echo Y| reg delete "HKLM\SYSTEM\CurrentControlSet\Control\COM Name Arbiter" /v ComDB /f
        echo clear successfully!
)else(
        echo ok!    
)
pause