打开CAD文件出现致命错误:Unhandlede06d7363hExceptionat7603b760h是因为下载的CAD软件文件缺失，具体解决步骤如下：
需要工具：电脑一台，，AutoCAD任意版本，驱动精灵
1、下载安装并运行驱动精灵，点击更多。
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2、然后打开系统助手
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3、再打开系统必备组件。
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4、打开之后全选，点击立即安装。
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5、待安装完成后打开游戏必备组件，点击立即修复。修复完成后重启，你打开CAD会发现完全没有任何问题了。
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