随着技术的发展，CAD/CAM软件在制造业中的应用越来越广泛。Mastercam作为一款知名的CAD/CAM软件，在全球范围内都有大量的用户。有时候用户可能会因为各种原因需要卸载Mastercam9.1。下面，我们就来详细讲解如何卸载Mastercam9.1，确保卸载干净，不留痕迹。
1.准备工作
在开始卸载之前，请确保以下准备工作已完成：
-关闭所有正在运行的Mastercam应用程序。
-确保您的计算机已连接到互联网，以便在卸载过程中可以下载必要的卸载工具。
2.使用Windows卸载程序卸载
1.打开控制面板：在Windows的开始菜单中搜索“控制面板”，打开控制面板。
2.找到程序和功能：在控制面板中，找到“程序”下的“程序和功能”。
3.选择Mastercam9.1：在程序列表中找到Mastercam9.1，点击它。
4.卸载：点击右侧的“卸载”按钮，按照提示完成卸载过程。
3.清理残留文件
虽然使用Windows卸载程序可以卸载大部分文件，但仍可能有一些残留文件。以下是一些清理残留文件的方法：
1.手动删除文件夹：
-打开“我的电脑”，定位到以下路径：
```
C:ProgramFiles(x86)Mastercam9.1
```
-删除该文件夹，以及以下子文件夹：
```
C:Users您的用户名AppDataLocalMicrosoftWindowsINetCacheContent.IE5
C:Users您的用户名AppDataLocalTemp
```
-注意：请确保删除的是Mastercam9.1的相关文件夹，避免误删其他重要文件。
2.清理注册表：
-打开注册表编辑器（按Win+R键，输入regedit并回车）。
-在注册表编辑器中，查找以下键：
```
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionUninstall
HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionUninstall
```
-在这些键下找到Mastercam9.1的相关条目，右键点击并选择“删除”。
4.重置系统环境变量
1.打开系统属性：在开始菜单中搜索“系统”，点击“系统”打开系统属性。
2.高级系统设置：在系统属性窗口中，点击“高级”选项卡，然后点击“环境变量”按钮。
3.修改系统变量：在系统变量列表中找到以下变量：
-Path
-ProgramFiles(x86)
-ProgramData
-LocalAppData
-LocalAppDataRoaming
-Temp
-TMP
-AppData
-AppDataLocal
-AppDataLocalLow
-AppDataRoaming
-Desktop
-Documents
-Downloads
-Music
-Pictures
-Videos
-User
-Users
-Windows
-WindowsSystem32
-WindowsSystem32config
-WindowsSystem32drivers
-WindowsSystem32spool
-WindowsTasks
-WindowsTasks{GUID}
-WindowsTasks{GUID}Tasks
-WindowsTasks{GUID}TaskSchedule
-WindowsTasks{GUID}TaskScheduleTasks
-WindowsTasks{GUID}TaskScheduleTasks{GUID}
-WindowsTasks{GUID}TaskScheduleTasks{GUID}TaskSchedule
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-WindowsTasks{GUID
