A 2 GB USB key 'should' be enough for dosgaming.... 'should'.
Begin with deleting all your downloaded files (if they're on it) ...
What you eventually can do:
Delete the ISOs and run the games from CD t'll you get your PC back.
Copy the CDs with ImgBurn ..... and use the backup disks.
When you get your PC back you can easily recreate the ISOs.....
Or buy a 4GB USB, but you will also fill this one up .....
![Laughing :laugh:](./images/smilies/laughing.gif)
About KQ7: If you mount the image correctly it will work (if you have enough space left). The game installs some 112MBs worth of files if you take full install.