Steam games can take up an awful lot of space, and one of the main problems for PC gamers can be shuffling around and deleting old games in order to make room for newer titles. Alternatively, you might upgrade to a new computer, or upgrade your hard disk. However, rather than having to go through the hassle of uninstalling and reinstalling whenever you want to move a game to a new hard drive, read our guide to moving Steam games to a new disk. (See also: Recover deleted files for free: recover lost data.)
Although you could go to the trouble of manually locating and copying your game files to a new disk, a far easier way is to use Paul Traynier’s Steam Mover tool. This small, free utility will automatically find your Steam directory with all your games in, assuming it’s in the default location. If not, use the drop-down menu to select it.
Then, to move the games to a different disk on the same computer, simply specify the new desired location for your files on the top left-hand side of the window.
Select the games you wish to transfer, then click on the right-hand arrow at the bottom. This will open some command prompt windows – let them run until they’re finished.
When they’re done, you should see that the game files are moved to the new disk, with a junction point created in the old location that essentially tells the computer where to find the files in their new home. This junction point means that your games should all still function perfectly normally on steam, with all of your data still intact.
To move them back to their original location, simply click on the left arrow button.
To transfer games between separate machines, the best way is to use an external hard drive as an intermediary. Select your Steam directory, and copy it over to the external hard drive. Then simply copy it onto the target computer, making sure to recreate the filepaths from the previous PC. Steam should automatically register the games without having to re-download.