An unexpected error has occurred. The troubleshooting wizard can't continue" Package ID: Unknown Path: C:\Windows\diagnostics\system\networking Error Code: 0x8007045A
3種修復的方法
Run the System File Checker tool (SFC.exe)
http://support.microsoft.com/kb/929833
修復後應該就可以
進CMD 在system32底下執行 sfc /scannow