ZoneAlarm Anti-Ransomware Windows 7 Requirements are Service Pack 2 and SHA-2 support.
Starting in January of 2016, Microsoft started enforcing the requirement to use SHA2 in digital certificates, rather than the older SHA1 method which has been shown to have security vulnerabilities. SHA2 is a name for a set of hash algorithms that includes SHA256. SHA2 support is standard in Windows 8.1 and above as part of the move from CAPI to CNG.
This requires the installation of the following 2 system installs.
If you are up to date on your Windows 7 SP1 updates, this should already be installed.
This system install is not part of standard updates. It is a hotfix, and needs to be installed manually.
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