Windows 8 interface elements are displayed incorrectly after installing a language pack

Question

Character encoding

I want to ask if anyone from the respected community has encountered the following problem.
After installing the OS update to Windows 8.1, the interface changed to Japanese (apparently based on the location, which was a big surprise for me). I installed the Russian language pack and switched the interface to Russian, but some traces of the Japanese interface remained. Some windows now look like this: There are

extra spaces between Russian letters, the yen sign has been preserved instead of a backslash. How to overcome?..