This file tells Ledger to run in PORTABLE mode.

Keep it in the same folder as Ledger.exe. When it is present, Ledger stores all
of its data in the "data" folder next to the app, instead of on the system
drive. That makes your data travel with this folder and survive a Windows
reinstall, and lets you open the same data from another operating system that
has a Ledger build.

Your data in the "data" folder is encrypted with the master passphrase you set
the first time you open this portable Ledger. There is no way to recover it if
you forget that passphrase, so store it somewhere safe.

Do not delete this file unless you want Ledger to behave as a normal installed
app again (storing data on the system drive).
