Please let us know if you experience further difficulties, or if you have additional questions or concerns. If you continue to have difficulty, further technical support for this title is handled by a third party support department - please follow the instructions in the link below to contact the support provider to troubleshoot this issue: You may also try using the key previously found in your registry if M&B asks for a CD Key again. Once the process is completed, the 'Check' window will automatically exit and you should be able to launch your game. Steam will verify the game cache files (GCF's) - this process may take several minutes. Select the 'Local files' tab and click the 'Verify integrity of game cache.' button. Right click on the registry value 'serial_key' and select 'Delete.'įrom the Library list, right-click on 'Mount & Blade' and select 'Properties' from the menu. The data contents of the registry entry 'serial_key' are your CD Key. Note: In 64-bit operating systems, this path may begin as: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ Navigate to the following registry key: HKEY_CURRENT_USER\Software\MountAndBladeKeys Go to the 'Start' menu, select 'Run', type 'regedit' and click 'OK'. If it still doesn't work, please try deleting your Mount & Blade registry entries: Verifying the GCF Cache solves most CD Key issues for most users. If you are running in Windows XP, take the following steps:Ģ) Go to the 'Start' menu, select 'Run', type 'regedit' and click 'OK'.ģ) Navigate to the following registry key: HKEY_CURRENT_USER\SOFTWARE\VALVEĥ) Check the boxes for 'Admin' and 'System' to 'Full control' and 'Read'.įirst, verify the GCF Cache for the game:

If you are running in Windows Vista, Windows 7, or Windows 8, please completely exit Steam, and right-click on the shortcut which you use to launch Steam and select 'Run as Administrator.' I am finally able to play multiplayer in a server! Here is what Steam finally messaged me on how to fix it:

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