MS13-036, one of the bulletins released last Patch Tuesday, has caused hangs during reboot for a number of Windows 7 users. The problem is mostly confined to users in Brazil that have the banking security plugin "G-Buster" installed. G-Buster is locally developed in Brazil by the company "GAS Tecnologia" and is widely installed in Brazil. Some of the major banks require their customers to install it to secure Internet banking. The plug-in which provides a virtualized and hardened operating environment for safer banking and one of its security measures is interfering with the Windows kernel patch contained in MS13-036.