Download a CAB file (language pack) for your language. Then rename the file to replace.me and put it into C:\ drive folder. Then run a command line. 1. Installing a Language Pack and Change the Windows Display Language from Control Panel · 1. On the Start page, type language, aand make sure. How to install an MUI language CAB file in Windows , Windows 8 and Windows 7 · Press Win + R keys together on the keyboard to bring up the Run.