1. 先下載 Windows Driver Kit http://www.microsoft.com/download/en/details.aspx?id=11800
2. 至tools\Power management,i386 for 32 bits
,amd64 for 64 bits
3. Copy PWRTEST.exe至待測機,
4. Open the cmd.exe and run as administrator. (注意:不懂請參考以下網址: http://support.microsoft.com/kb/981174/zh-tw)