Capcom previously introduced an anti-cheat update for "Street Fighter 5" that was supposed to prevent hacking activities and provide fairer and balanced fights between players. However, the "Street Fighter 5" tool, particularly the Capcom.sys file, caused problems to several systems, leaving many players unable to play the game at all.
In the Steam forum, Capcom confirmed that they found the Capcom.sys file in title update Ver. 1.09 of "Street Fighter 5" on PC to contain a number of security risks. In response, they are launching a tool to delete the risky files beginning Sept. 30, 2016. The users particularly affected by the "Street Fighter 5" issue are those who downloaded the title update Ver. 1.09 on September 22, but did not apply the additional patch that released on September 23. Users who did not restart their PC after applying the September 23 patch are also affected.
Capcom stated that after restarting their computer, "Street Fighter 5" players need to run the check/deletion tool, which will let them remove the Capcom.sys file. They should also search for registry entries related to the file and delete these accordingly. To use the deletion tool, "Street Fighter 5" players should close the application first. The Steam client should remain open and the "Street Fighter 5" game update will automatically start. After the update is complete, players will find two batch files added to the folder path.
Right click on DeleteSFVdriver_en.bat and choose "Run as administrator." Follow the instructions accordingly. The tool will require "Street Fighter 5" players to restart their PC. After restarting, right click on the DeleteSFVdrive_en.bat and choose "Run as Administrator." The message, "Capcom.sys or related registry doesn't exist. End the program," will appear, which means that the risky "Street Fighter 5" files have been successfully removed.
Polygon noted that Capcom provided the "Street Fighter 5" rollback tool as batch files for various reasons, such as ensuring that users can find the source code. Players are advised to download the file only via Steam, since .bat files can be hacked and changed easily. More updates and details on "Street Fighter 5" are expected soon.
