How to back up the computer data before reloading the system?

Windows PE refers to the Windows Preinstallation Environment, which is a minimal Win32 subsystem with limited service, based on the Windows XP Professional kernel that runs in protected mode. It includes the minimum functionality required to run Windows Installer and script, connect to network shares, automate basic processes, and perform hardware validation to save critical data. For example, when there is a serious problem in the system and even crashes require reinstalling the operating system, all data for this partition is lost because the installation process may format the partition where the system resides. In this case, the data is saved through the PE system.

In the mountains of the main screen of Red leaf CD Select the "Start Windws PE System" menu item, you can enter the Windows PE main interface, from the interface can be seen, Windows PE has ghost Backup, password recovery, partition repair and resource manager functions.

On the Windows PE system main interface, double-click the My Computer icon to open the My Computer interface, you can find partitions on your hard disk, you can copy files from important files on your system disk, such as desktop and My Documents, to other partitions or USB drives, and then format and install them.