The remedies listed below should be able to help you get rid of the issue “Failed to add new Steam library folder” when installing a game or creating a new library folder.

If you see Failed to add new Steam library folder message, when changing the installation drive on Steam, here's what you need to do to fix the issue.

If the Steam Library folder is not writable, you can make it writable with the method given here. Multiple solutions have been provided!

Create a new Steam Library in the external drive To transfer the game to your external SSD or HDD, you first need to add the drive to Steam, which will create a new Steam Library. Here's how to do ...