Use a high-quality USB cable for a stable connection.

After installation, users often need to activate the software using a valid license key to access all features.

The numeric string does not appear in Wondershare’s official changelog for modern Dr.Fone (current version as of 2025 is v13.x or higher). Through reverse-engineering community databases, version 138987 corresponds to an extremely old build—likely Dr.Fone v10.7.2 or v11.0.3 , released approximately between 2019 and 2020.

Using a pirated "full install" violates the DMCA and software licensing agreements. Additionally, distributing version 138987 via torrent exposes you to copyright infringement notices from your ISP.

Locate the downloaded file (typically named drfone_setup_full.exe ) in your Downloads folder and double-click it.