Method 2.
If the font are not displaying correctly even after installing the language pack you can try the following setting.
Right click on the icon. go to properties.
Click on Compatibility -> Change High DPI setting
Change the setting to match my screenshot
Method 3.
remove the Chinese language pack and add it back again.
If you had the language pack already installed before a windows upgrade, the language pack may not have been updated.
1. remove the Chinese language pack.
2. install the language pack again.
3. PC may need to be need restarted after reinstalling the language pack.
if the accounting system was open, it'll need to be restart too.
4. you may need to do redo the setting on the language option.