Delete the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\VisualSVN .
The Silent Blockade: A Deep Dive into the VisualSVN Server Licensing Limbo and How to Break Through visual svn server license key fix
This is the first "fix" to attempt, even if you have done it before. visual svn server license key fix
Visual SVN Server maintains its own configuration. Direct edits can corrupt license validation hooks. Always use the Manager console. visual svn server license key fix