Windows Update Required to Run Shadow Arena

Greetings, this is Shadow Arena.
As the Code Signing Certificate (SHA-1) has expired with the Windows OS,
players using Windows OS below Windows 7 (such as XP and Vista) or do not have the latest version of Windows 7 may experience some difficulty with playing the game.
How to check My Computer’s OS
Start > My Computer (My PC) > Right-click for Properties > Windows Version
Players that are experiencing issues related to this need to update or upgrade their OS to run Shadow Arena.
Category
Procedure
Not the latest verions of Windows 7
Windows XP, Vista
Upgrade to Windows 7 or higher
Please note the information provided above to get the best gameplay experience.
Thank you.