Can't launch world of warcraft

Coming here for some help because you guys have fixed all my problems in the past

Right when i try and run world of warcraft a message pops up saying this [ Launcher requires write permission to the World of Warcraft Registry key to successfully locate and run the game. Please enable write access to the Registry key using an adminstrator account ]
I'm the only user of this computer and i'm adminstrator, i have tried right clicking the desktop launcher and run as adminstrator but still get the same message, also been into the wow folder and changed the launcher there to run as adminstrator and the wow.axe folder..still get the same message.#
Anyone got eny ideas what could be the problem?

Right, You should follow this:

Full Control Permission to Delete or Edit Restricted Windows Registry | Raymond.CC Blog

Follow Windows Vista if said so, as Vista is most of the time the same as Windows 7.

After you follow this.. try and run the program again
EDIT:
Also if your trying to find the key, Here is something handy: http://wiki.answers.com/Q/What_are_t...gistry_entries

Umm don't really understand that it says 2. Right click on the key that you want to take full control of and select Permissions…
But i can't find the key: /

Okay did you check my second link? It says what it should be in the registry.

If you can't find the key.. it may be best to reinstall it.

Yeah having same problem on the 3rd install now keep getting this message

Have you tried following my instructions? If so and it is still not working, then you may need to wait as I'm pretty much stumped after what I have suggested.

Ok im finnaly playing again, 3rd time lucky on the install? well I turned off my fire wall but didn't alow the launcher update till I had wow + the 2 expansions download 1st then I let the laucher update and when it got to the cata laucher I clicked play when it was avalible, hope this helps.

Also if that dosn't work go to the wow fourms if Europe - World of Warcraft (en) Forums -> 4.0.0+ Patch and Installation Information
scroll down to the end of the page you should see a link -
PC - https://eu.battle.net/account/downloads/WoW-4.0.0-WOW-enGB-Installer.exe

I saw another post related to this link above saying -

"I've downloaded file "WoW-4.0.0-WOW-enGB-Installer.exe" from the link provided by one of the "blues" and launcher started normaly! If You have the problem with "launcher.exe.TRASH" just exit, delete "launcher.exe" from the folder where You have WoW installed and You will be able to instal and play the patch normaly "

That's Good You Found Your Own Way,

Thank You for sharing it as well..

hi i have installed world of warcraft and it installed up to wrath of the lich king. when i try to install cataclysm it was saying can not connect. when i click on WOW.exe it open and it goes to patch then says patching failed i have uninstalled it and reinstalled it 5 times now and the same thing is happening can someone please help.

From
Jason

Probably best to ask the blizzard forums, or contact support!