Introduction to the two methods of upgrading the system from XP to Win7

Q: I want to upgrade my Windows XP system to Windows 7, to ensure that all documents except the C drive are not affected, what should I do? Is the original software to be reinstalled?
A: This problem is actually very simple. There are two ways to upgrade Windows XP to Windows 7: First, upgrade the installation method (on the existing system, upgrade the existing system, retain the data of the existing system) And software). The second is the new installation method (installing a new system independently and completely, without any relationship with the original system). It is recommended to use a new installation, because upgrade installation will inevitably encounter some unexpected problems. As for the original software, of course, you have to reinstall it. During the new installation, format the C drive when Windows selects the installation location, and then install it (you can also boot to the Windows PE environment, format the C drive and then install it). If the installation is new, as long as there is enough space in the partition, there will be basically no problem.