Member Avatar for soco_chic16

I recently installed WoW on my new laptop but when I got to the Burning Crusade expansion discs I had to shut the laptop down. I did this without exiting the BC installer. When I rebooted the laptop and tried to return to installing BC it would not allow me to and claimed BC was already installed even though i had only gotten to the second install disc. I uninstalled WoW from the laptop and attempted to reinstall it. I reinstalled all the original WoW discs successfully but when I got to the BC discs it would not allow me to install them a window popped up, as it had before, stating "Burning Crusade is already installed". I know that it is not because when I open WoW the log in screen is not the one from burning crusade it is merely the original one. Does anyone have any tips on what I can do to fix this?

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  • Latest Post Latest Post by Phaelax

Dani AI

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This looks like the installer is seeing leftover markers from the interrupted Burning Crusade install. Building on ’s registry idea and ’s note about vendor support, the usual fix is to remove the leftover uninstall/marker entries and any partial files, then reinstall cleanly.

First, remove visible leftovers without touching the registry: open Programs and Features (Add/Remove Programs) and uninstall any World of Warcraft or Burning Crusade entries. If nothing appears there, delete the World of Warcraft folder (check both C:\Program Files\World of Warcraft and C:\Program Files (x86)\World of Warcraft on 64-bit Windows) and remove Blizzard-related folders from your user profile (%appdata% / AppData\Local / ProgramData). Reboot.

If the installer still claims BC is installed, back up the registry (File → Export in Regedit) and create a System Restore point, then use Regedit to search for keys whose DisplayName or values contain "World of Warcraft" or "Burning Crusade." Common places to check are:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
  • on 64-bit Windows also under HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall
    and any Blizzard/World of Warcraft keys under HKLM\SOFTWARE or HKCU\Software. Delete only keys that clearly reference WoW/BC (look for a DisplayName value). If uncomfortable editing the registry, use Microsoft’s Program Install and Uninstall troubleshooter or a reputable uninstaller (e.g., Revo) to remove broken installer entries.

After cleanup, run the WoW installer as Administrator, insert Burning Crusade disc 1 when prompted, disable antivirus/real-time protection temporarily, and install to a fresh folder. If the problem persists, gather OS version, exact error text, and a list of registry keys you removed and post those on Blizzard’s technical support/forums so they can confirm no hidden markers remain.

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Member Avatar for Ezzaral

I would imagine the technical support forums at World of Warcraft do.

This forum is just general game development questions. You would get much more specific help asking on the WoW tech forums as they are much more familiar with their own products.

Member Avatar for Phaelax

It's probably a registry issue. Try to find the keys in the registry that deal with that expansion and remove them.

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