First of all, win 10 does not support digital certificates, so it will not be signed successfully (according to the technical support of the State Information Administration).

Second, the best way is to generate an xp 32-bit system with a virtual machine and install a 2003 office(32-bit office) in the xp system.

Third: upgrade your cpc software (in xp system) with the latest offline upgrade package (make sure it is run by the administrator).

Fourth: cpc software cannot be installed in the programfile folder. Create a folder yourself (otherwise the update will fail).

So you can use this meaningless cpc software,

Remarks: How to share files with the host and how to surf the Internet to Google. Or Baidu.

This software is nonsense, many different environments and permissions will cause all kinds of messy problems. Let's do it and cherish it.