WoW crashes when i try to load on my 80's char

[AJ84]

So i just installed a brand new Windows 7 Ultimate 64 bit,well not not actually installed it but i got the Genuine one since the one that i thought it was genuine turned out to be a total disaster.. And i thought my WoW would be fine afterwards but its still having a lot of crashes issues whenever i try to load on my lv 80's chars,not on my low lv chars.. Heres the message that pops out everytime,

ERROR #134(0x85100086) Fatal Condition
Program : C:\World of Warcraft\WoW.exe
Failed to read file WORLD\GENERIC\HUMAN\
DOODAD\FOG\SFX_FOG_NASTY_WHITE PASSIVE

Any suggestion??

[Czhmoud]

Have you tried the repair tool? (You can find that in your wow folder) I think some files were corrupted during installation so I guess you should try the repair tool or reinstall WoW.

[vesseblah]

Start by deleting whole WoW/cache folder and turn off all addons

If it still keeps crashing, run the repair tool. Last resort is reinstalling the game.