2015/3/7:14:57:26 py PY-PC === Setup started on PY-PC by py ===
2015/3/7:14:57:26 py PY-PC Launch
2015/3/7:14:58:02 py PY-PC === Setup ended ===
2015/3/7:14:57:26 py PY-PC === Setup started on PY-PC by py ===
2015/3/7:14:57:26 py PY-PC Launch
2015/3/7:14:58:04 py PY-PC PageOpen LaunchDialog
2015/3/7:15:05:36 py PY-PC PageOpen LicenseDialog
2015/3/7:15:05:40 py PY-PC PageOpen ProductInfoDialog
2015/3/7:15:06:28 py PY-PC PageOpen ProductSelectionDialog2
2015/3/7:15:07:17 py PY-PC PageOpen FullProgressDialog
2015/3/7:15:07:17 py PY-PC Installing .NET Framework Runtime 4.0: E:\Program Files\CAD\3rdParty\NET\4\wcu\dotNetFramework\dotNetFx40_Full_x86_x64.exe /q
2015/3/7:15:07:41 py PY-PC Install .NET Framework Runtime 4.0 Failed Installation aborted, Result=1603
2015/3/7:15:07:42 py PY-PC PageOpen InstallCompleteDialog
2015/3/7:15:12:18 py PY-PC === Setup ended ===
2015/3/7:15:12:30 py PY-PC === Setup started on PY-PC by py ===
2015/3/7:15:12:30 py PY-PC Launch
2015/3/7:15:12:39 py PY-PC === Setup ended ===
2015/3/7:15:12:30 py PY-PC === Setup started on PY-PC by py ===
2015/3/7:15:12:30 py PY-PC Launch
2015/3/7:15:12:37 py PY-PC PageOpen LaunchDialog
2015/3/7:15:12:45 py PY-PC PageOpen LicenseDialog
2015/3/7:15:13:59 py PY-PC PageOpen ProductInfoDialog
2015/3/7:15:14:16 py PY-PC PageOpen ProductSelectionDialog2
2015/3/7:15:14:31 py PY-PC PageOpen FullProgressDialog
2015/3/7:15:14:32 py PY-PC Installing .NET Framework Runtime 4.0: E:\Program Files\CAD\3rdParty\NET\4\wcu\dotNetFramework\dotNetFx40_Full_x86_x64.exe /q
2015/3/7:15:14:51 py PY-PC Install .NET Framework Runtime 4.0 Failed Installation aborted, Result=1603
重新下载一个新的安装包。
装不上主要注意以下几个问题：
1、.NET Framework 可以卸载之后再装AutoCAD，因为不论你装了没有AutoCAD都会安装.NET Framework。
2、安装盘目录不能放在中文文件夹里（非常常见的问题，毕竟是老外的软件）。
3、查看你的安装日志文件，看看里面有Failed的东西，都卸载之后再安装AutoCAD，常见的有.NET Framework 、DirectX、什么C++ 200X之类的。
4、换一个AutoCAD版本安装。
5、安装的时候把防火墙、杀毒软件、360等等的监控关闭掉，最好是退出该软件。（这些东西都在监控你的系统，你也不知道它在看什么呢，这种问题我自己都遇见过几次了。）
