When you install a new operating system, such as Windows 7, you should always back up your important files first. This way, if something goes wrong during the installation process, you’ll still have your files intact. Here are the things you should back up before installing Windows 7:
1. Your personal files
2. Your installed programs
3. Your system settings
4. Your device drivers
5. Your email and contacts
6. Your Internet bookmarks
7. Your photos and videos
8. Your …