BCCode: 116 Error Message is related to Graphic Card, Overheating etc.. I don't think it's software problem but you could try. You playing WoW on integrated graphic card which is really bad for that game, you'll have to get something better.
You can easy copy whole game where ever you want, burn on DVD or something or just put on external Hard Disc if you have, usb flash drive, or move it to second partition. I have C, D and E partitions on my computer, don't know what you have, but you can easy go to C:/Program Files/ right click on World of Warcraft folder and click CUT, now go to other partition and go right click Paste.