WotLK Client Settings Reset Every Launch

Every time I launch the WotLK clients it asks me for permission to "install" (even though there is no install for this) and my settings are reset. I've tried this with both the old client and new WoD models client and have the same issue with both. I have WoW downloaded on my D: Drive (1 TB HDD Storage) rather than my C: Drive with just 42 gigs of SSD left if it matters. It shouldn't because I did the same thing with the Cataclysm Client when I played on Neltharion and it worked fine. Anyone have suggestions?

Thanks for taking the time to read this! Hope you can help me. :)

~Worm

Find your game folder , Right click it. Click Properties and uncheck the box Read-only.