First of all, if the previous installation of OFFICE was unsuccessful, or it could not be uninstalled normally, please read the following article:
Windows installer cleanup: /article.asp? id=320
The VOL version is encapsulated and integrated with the "MAK" key, which is very similar to the third scheme. It's just encapsulated
Option 2 (Install Office 20 10 Enterprise Edition +KMS Activation-Recommended):
Microsoft Office 20 10 PROVOL Simplified Chinese Official Edition+Mini KMS Activation:
/article.asp? id=3 16
The latest Microsoft Office Pro 20 10 simplified Chinese official version activation key (key activation process):
/article.asp? id=3 19
Because the activation of the key is limited, I personally recommend the second scheme (completely according to it), hoping to help you.