When we open the WIN7 family edition system and enter the desktop, first open the Start Menu, which contains a program called Windows Anytime Update (if not all programs are included in the Start Menu !), Open and click "upgrade with serial number" in the pop-up window! Then enter 27GBM-Y4QQC-JKHXW-D9W83-FJQKD in it (note! This is the serial number for upgrading from the family primary edition to the home professional edition! You must upgrade from the primary edition to the Professional Edition before you can upgrade from the Professional edition to the flagship edition! Cannot be upgraded !) After verification, download and install the Upgrade Component, download and install the system patch, and then automatically shut down the upgrade. After the upgrade is automatically restarted, it will be the family Pro version! The time is about 20 minutes!
The next step is to upgrade the family advanced edition to the flagship edition! The process is exactly the same as above! The upgrade serial number is 6k2ky-bfh24-p4246w-9gk29-tmpwp or 22TKD-F8XX6-YG69F-9M66D-PMJB. the upgrade process is short, about 10 minutes! The main reason is that the system patches to be installed are much less)
Note: During the upgrade, please note that power-off is not allowed throughout the process. It is recommended that you plug in the battery and have an external power supply! The upgrade requires Internet connection. The entire upgrade process is about 30 + minutes!