by AverageJoe » Tue Jun 30, 2015 2:22 pm
Where did you install WoW to? C:\Program Files (x86) ? If so, cut and paste your entire WoW folder outside of the Program Files folder, like on your C:\ so it plays from C:\World of Warcraft Classic. Then login, change some settings, logout, close WoW, relaunch WoW, and relog back in and see if the settings stick.
Otherwise you could try setting Wow.exe to always run as administrator.