Rename the folder corresponding to your current language to LOC_BACKUP . This ensures you can revert if something goes wrong.
: Some users report that simply changing the registry doesn't work because the actual English audio files are not present in their installation, making the download of a full "English Pack" necessary. How to Use the English Pack Nfs The Run English Language Pack Download
File size should be approximately 800 MB to 1.2 GB (for audio) plus another 50 MB for text. Rename the folder corresponding to your current language