You may run into licensing and activation issues with your re-installed programs.
你重新安装的软件可能会遇到授权和激活问题。
2
Test machines were constantly being installed and re-installed with a range of products, as well as service packs and prerequisite software — often the entire operating system had to be re-installed.
在测试机器上不断地安装和重新安装各种产品以及服务包和必备软件—通常必须重新安装整个操作系统。
3
If you've already installed the remote components from the 4.0 release, you do not need to re-install them.