之前電腦上有python2.7.9，因tribon程序需要裝了2.3.3，結果卸載2.7.9時提示there is a problem with
widows installer package,a program run as part of setup did not finish
as excepted. contact your support personel or package vendor.
現已強制卸載，但是再次安裝python2.7.9時還是提示這個錯誤，請問有什麼解決辦法嗎？系統是win7 64位
