You’ve just got yourself a brand new rig, and in part of setting it up, you want to get SWTOR up and running again as quickly and painlessly as possible.
From your old computer, copy the contents of the following directory somewhere safe. It includes your client’s graphics settings and the GUI profiles you created using the in-game Interface Editor.
Windows XP: C:\Documents and Settings\{username}\Local Settings\SWTOR
Windows 7 & 8: C:\Users\{username}\AppData\Local\SWTOR
If you can’t see the above folder, you may have to enable the following option in Windows Explorer, which makes “hidden” folders (such as AppData) visible:
You may want to archive your screenshots and/or combat logs:
Windows XP: C:\Documents and Settings\{username}\My Documents\Star Wars - The Old Republic\CombatLogs
Windows XP: C:\Documents and Settings\{username}\My Documents\Star Wars - The Old Republic\Screenshots
Windows 7 & 8: C:\Users\{username}\Documents\Star Wars - The Old Republic\CombatLogs
Windows 7 & 8: C:\Users\{username}\Documents\Star Wars - The Old Republic\Screenshots
Note that your keybindings are stored with your account on BioWare’s servers, so they’ll be preserved even if you do nothing!
If you have an amazingly fast Internet connection, unlimited bandwidth and lots of faith in BioWare’s CDN (Content Delivery Network), you could do a clean installation on your new computer.
However, if you’d rather avoid downloading roughly 20 GB, you’ll need to copy or archive (via a tool like WinZip or 7Zip) your current SWTOR installation. By default, it’ll be installed in one of these locations:
C:\Program Files (x86)\EA\BioWare\Star Wars – The Old Republic
C:\Program Files\EA\BioWare\Star Wars – The Old Republic
You’ll want that copy accessible to your new computer (over your home network, on a USB drive).
Next, download the installer for the game’s launcher from BioWare. You’ll find a download link on your account page on SWTOR’s official site.
Run the installer, which will install the launcher.
Do NOT run the launcher yet! Next, overwrite the newly-installed game with what you copied from your old computer. If there are conflicts, it doesn’t matter whether you overwrite them or keep the new version (I’d lean towards keeping newer ones).
Next (and this applies if you’ve done a clean install, too), copy your settings (which you preserved above) into the equivalent location from which you copied them on your new rig.
Finally, you can fire up the launcher on your new computer. Everything should (in theory!) be ready to go, pretty much exactly as it was on your old computer.
Now, back to the game!