You have a much smaller risk of infection if all of the software on your PC is updated. This is because updates can fix holes or vulnerabilities in software.
If the vulnerabilities aren’t fixed, they might allow malware to use an exploit to get onto your PC. Microsoft security software can help protect you against these threats, but updating your software is still very important.
Downloading from other sites and using old versions of Java can leave your PC vulnerable to infection.
Java SE 6 can only be updated if you are an enterprise customer. If you are running Java SE 6, this might leave you vulnerable to threats. We recommend you either upgrade your Java version to 7 or higher and remove Java 6, or completely remove Java from your PC.