Canon Pixma PM 145 installation problems.?

I cant install Canon Pixma PM 145 in English, Ive checked control panel > language -- region, its been suggested that my operating system could be at fault. I live in Thailand and my computer was purchased in Bangkok, at times some downloads appear in Thai, any suggestions as Ive tried everything I know but my computer knowledge is just a bit better than basic. Canon states that the OS for this unit must be English only.