There are a few easy ways to change the language of the GSA:
1. If you are working with a remote client, and you don’t want to change the main language of the GSA, you can just open an “incognito window”, log on the GSA Server, and add:
&hl=en
or
?hl=en
to the end of the URL. Example:
http://gsa.admin.com/….&hl=en
2. For permanent language change, just change the language of your Internet Explorer.