There are many users and authors. After reinstalling the operating system, the most troublesome thing is not to "reinstall common software", but to re-associate some common files after installing the software. Open the program with the default.
For example, before Windows 7 users reinstall the system, the default programs for opening AVI, MP3, RMVB and other files are Windows Media Player 12. Once the system is reinstalled, due to the need to reinstall the commonly used software, the default opening of these three types of files will change accordingly. You need to re-associate the three files AVI, MP3, and RMVB with WMP12 (that is, run AVI, MP3, When the RMVB file is used, the program called by default is WMP12).
If you are a Windows 7 user now, you can avoid such duplication of effort, without having to re-associate the default opener one by one. Continue with WMP12 as an example:
Click the "Start" button and select "Default Program" from the pop-up menu. Later, the "Set Default Program" dialog will open. Select "WindowsMediaPlayer" in the list on the left, then click the button in the red box in the lower right corner (see Figure 1).
Figure 1
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