How to Fix the JIT Debugger

1. Press the 'Windows' key plus the 'R' key to open a Run box.
2. Type 'Regedit' in the Run dialog box and click 'OK.' This opens the Registry Editor.
3. Navigate the following registry path:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug\DebuggerRight-click the registry entry at the end of the path and click 'Delete.'
4. Navigate the following registry path:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\DbgManagedDebuggerRight-click the registry entry at the end of the path and click 'Delete.' Exit the Registry Editor.