For Windows 8, Windows 7, Vista, Server 2008, Server 2003, Server 2000 XP and 2000 (SP 4) - 32-bit users

1. Product Update for 32 bit
2. Threat Definition Update for 32 bit

For Windows 8, Windows 7, Vista, Server 2003 and XP - 64-bit user

1. Product Update for 64 bit
2. Threat Definition Update for 64 bit

View this information in Max Secure Anti Virus Pro from Options>Product Info tab.
You need to Download Product Update if any of the following versions are different on your PC.

Scan and Quarantine Engine Version. No.	=    19.0.2.045
Threat Definition Version No.	=    16.2.0.187