安装CAD2014的时候一直安装失败，我是win7 64位系统，安装的也是64位的cad

2017/2/13:10:50:31 Administrator USER-20170210JL === Setup started on USER-20170210JL by Administrator ===
2017/2/13:10:50:31 Administrator USER-20170210JL Path_Length: 155
2017/2/13:10:50:31 Administrator USER-20170210JL Current Directory D:\CAD\AutoCAD_2014_Simplified_Chinese_Win_64bit_dlm
2017/2/13:10:50:31 Administrator USER-20170210JL Launch
2017/2/13:10:50:31 Administrator USER-20170210JL CommandLine
2017/2/13:10:50:31 Administrator USER-20170210JL Path_Length: 155
2017/2/13:10:50:31 Administrator USER-20170210JL Current Directory C:\Users\ADMINI~1\AppData\Local\Temp\_AIC84D.tmp
2017/2/13:10:50:46 Administrator USER-20170210JL === Setup ended ===

2017/2/13:10:50:39 Administrator USER-20170210JL === Setup started on USER-20170210JL by Administrator ===
2017/2/13:10:50:39 Administrator USER-20170210JL Path_Length: 155
2017/2/13:10:50:39 Administrator USER-20170210JL Current Directory C:\Users\ADMINI~1\AppData\Local\Temp\_AIC84D.tmp
2017/2/13:10:50:39 Administrator USER-20170210JL Launch
2017/2/13:10:50:41 Administrator USER-20170210JL Install CustomCallback Info Invoking custom callback for details: [SETUP] CB_FUNC=CustomPlatformCheck CB_SOURCE=C:\Users\ADMINI~1\AppData\Local\Temp\_AIC84D.tmp\Setup\AcSetup.dll
2017/2/13:10:50:41 Administrator USER-20170210JL Install CustomCallback Info Custom callback response: Status=0 SUCCECSS Title= Message= URLTitle= URLLink=
2017/2/13:10:50:46 Administrator USER-20170210JL PageOpen LaunchDialog
2017/2/13:10:53:21 Administrator USER-20170210JL PageOpen LicenseDialog
2017/2/13:10:53:28 Administrator USER-20170210JL PageOpen ProductInfoDialog
2017/2/13:10:54:13 Administrator USER-20170210JL PageOpen ProductSelectionDialog2
2017/2/13:10:54:25 Administrator USER-20170210JL PageOpen FullProgressDialog
2017/2/13:10:54:26 Administrator USER-20170210JL Installing .NET Framework Runtime 4.0: "D:\CAD\AutoCAD_2014_Simplified_Chinese_Win_64bit_dlm\3rdParty\NET\4\wcu\dotNetFramework\dotNetFx40_Full_x86_x64.exe" /q
2017/2/13:10:56:02 Administrator USER-20170210JL Install .NET Framework Runtime 4.0 Failed Installation aborted, Result=1603

原因：电脑系统残留着其他版本CAD的文件。
1、首先按“win+R”组合键打开运行，点击输入“REGEDIT”，回车确定。



2、然后在弹出来的窗口中点击打开HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer中的Patches项。



3、然后在弹出来的窗口中删除7D2F387510074080002000060BECB6AB键值，这记录的是Autocad的安装源路径，点击这个键值可以看到右边显示的信息正是Autocad的安装信息。



4、然后删除HKEY_LOCAL_MACHINE/SOFTWARE/Autodesk/AutoCAD和HKEY_LOCAL_user/SOFTWARE/Autodesk/AutoCAD。



5、然后就可以正常安装了。

你的windows7没有打Net Framework的补丁，需要用windows up data更新系统，所有和Net Framework 有关的补丁都打上就可以了（可选补丁也要打），我的也是这个情况，更新好就可以用了，360等各类管家都会忽略各种补丁，建议使用Windows UPdata。

<p _extended="true"><a href="http://wenwen.soso.com/z/urlalertpage.e?sp=shttp%3a%2f%2fstudents.autodesk.com.cn%2f" target="_blank">http://students.autodesk.com.cn/</a></p>  <p>&nbsp;</p>  <p><strong>这个可以，你下64位系统的即可</strong></p>