Even though removing Internet Explorer isn't a wise option, you most certainly can safely Internet Explorer and use your alternative browser as the one and only way to access the internet on your Windows computer.
In my experience, removing IE causes too many problems to be worth it, even with the workarounds.
Unfortunately, there is no safe method to remove Internet Explorer from Windows.
Internet Explorer is more than just a browser - it works as an underlying technology behind a number of internal Windows processes including updating, basic Windows functionality, and more.
New Session File Format (".ptf") Pro Tools 7.0 uses a new session file format and extension (.ptf) to distinguish its sessions from sessions created with previous versions.
Pro Tools 7 sessions need to be saved as an earlier format to be used with pre-7.0 Pro Tools systems.