Hello,
As Ray said, you can move the files wherever you want on your desktop computer (from your flash drive)
Once done, all you need to do is download the Game Center from there
https://allods.my.com/en/download (10Mo) and open it.
It will start downloading the game, just stop it, and open the menu to get this option
Search for your copied files and it should be fine.
If there are any issues, run a "Verify and fix game client files" from the same menu in the game center. You may have to delete your personal setting files as you switch to another computer (different display screen etc.)
You may also have to change the default folders where the my.com games and updates will be downloaded to, in the game center settings (the settings icon is above your login name). For example: