By Scott Cunliffe
You may experience an issue getting into a Vault 2017 client after installation. This is due to an issue with language packs for smaller regions.
To solve, browse to:
Copy the en-US folder and paste in situ:
Rename it to your local language. For the UK you want to use “en-GB”:
Launch Vault 2017 again and you’ll be able to log in.
It is suspected that this is related to a Windows 10 upgrade, which warns users that they may need to reinstall a language pack afterwards. Please leave a comment below if you’ve had this issue on another OS.