安装autocad2004后officexp变成未激活状态的解决办法：编辑注册表，将[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\4080820900063D11C8EF00054038389C\Usage]里的DWORD类型的AlwaysInstalled键删掉，重建个字符串型的AlwaysInstalled键，输入值“AlwaysInstalled”即可。
编辑注册表，将[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\4080820900063D11C8EF00054038389C\Usage]里的DWORD类型的AlwaysInstalled键删掉，重建个字符串型的AlwaysInstalled键，输入值“AlwaysInstalled”即可。
修改后的注册表项如下：
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\4080820900063D11C8EF00054038389C\Usage]
"AlwaysInstalled"="AlwaysInstalled"
