I can't seem to change the language in my Windows 7 installation, please help
What version of Windows 7 do you have and what have you tried so far.
I have tried changing regional and language options, but I don't have an option to install additional language files.... It's Windows 7 Home Basic
You can only change the input language, you can only install different language packs for the display language in Windows 7 Ultimate or Windows 7 Enterprise.
Open Windows Anytime Upgrade by clicking the Start button. In the search box, type anytime upgrade, and then, in the list of results, click Windows Anytime Upgrade.
To change an input language, see this link:
This applies to all versions of Windows 7.