Migration Tool for Prepar3D v4 is now available from its product page. It works with not only v4, but also all other versions of Prepar3D.
Things to note:
- It is an early version and advanced protections are not yet available.
- Because of changes to Prepar3D v4 configuration files, it is possible that some addons will corrupt them during installation. Please report them on the forum to help us identify extent of the problem.
- Last, but certainly not least: please do make a regular backup of your PC. Forcing old software onto Prepar3D v4 comes with an elevated risk of data corruption, which can be effortlessly mitigated with backups. There are a lot of tools for easy backup and recovery. For example, those who have Western Digital hard drives can use the excellent Acronis True Image for free.