我的電腦裝的是W7旗艦版，在裝STEP V5.5的時候總是彈出對話框說：Error 1311.source file not found
                                                                                                                        C:\Users\think\AppData\Local\Temp\Data1.cab. Verify
                                                                                                                        that the file exists and that you can access it.
            這到底是哪里出錯了啊    是下載的鏡像文件不完全還是我電腦的問題啊   我把殺毒軟件關了裝也一樣沒用啊！我都要崩潰了！

沒授權啊,悲劇啊,哪位大哥有辦法啊???