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: