If you want to transfer files from an old PC to a new one without an external hard drive, you can share files over LAN or Wi-Fi or with software.
Method 1: Transfer files over LAN or Wi-Fi
If both your computers are on the same network and within range, you can set up a local area network (LAN) so you can use one PC to search through the other PC's hard drives to choose which files you want to be transferred over.
Windows 10 and other operating systems have a built-in setting that allows users to set up a home network so devices on that same network can recognize each other. What does that mean for the user? Well, each time you transfer files from PC to PC, you won't need to go through the process of setting up a new connection. The connection will always be accessible as long as both devices are powered on.
Method 2: Transfer files with third-party software
If you're looking for a simple solution to transfer files from PC to PC, the LapLink PCmover v.11.0 Ultimate with Ethernet cable might be what you've been searching for. This software makes it effortless to move files from your old PC to your new Windows 10 computer.
To use the PCmover software, you simply start by installing the software on both your new and old PC. Most of the applications and files will be installed so they're immediately functioning on the new PC without needing to dig out license numbers or installation discs. Microsoft's Windows Easy Transfer was scrapped so PCmover is the lightning-fast, necessary solution that saves you from data transfer frustration.