Open the WTF
folder.
Open the config.wtf
file with notepad.
Remove everything.
Put these into the file:
SET locale "enUS"
SET realmList "logon.masterwow.ir"
SET hwDetect "0"
SET gxWindow "1"
SET gxResolution "1920x1080"
SET gxRefresh "60"
SET gxMultisampleQuality "0.000000"
SET gxFixLag "0"
SET videoOptionsVersion "3"
SET movie "0"
SET checkAddonVersion "0"
SET Gamma "1.000000"
SET readTOS "1"
SET readEULA "1"
SET showToolsUI "1"
SET accounttype "LK"
SET Sound_OutputDriverName "System Default"
SET Sound_EnableAllSound "0"
SET Sound_MusicVolume "0.40000000596046"
SET Sound_AmbienceVolume "0.60000002384186"
SET farclip "727"
SET specular "1"
SET groundEffectDensity "24"
SET projectedTextures "1"
SET realmName "Fun Server (Instant 100)"
SET gameTip "33"
SET patchList "logon.masterwow.ir"