Complete System Requirements for ZoneAlarm Products

The following minimum requirements are recommended for the best performance levels and experience with our software. Installing our software on computers that do not meet these requirements is possible but will result in a lower-quality user experience, and in particular slower performance.

Operating system requirements

Microsoft® Windows® 7: SP0 or SP1
All Versions:

• 32-bit / 64-bit, 2 GB RAM
• 2 GHz or faster processor
• 250MB of available hard-disk space (100MB for ZoneAlarm free firewall)

Microsoft Windows Vista SP2
All Versions:

• 32-bit / 64-bit, 2 GB RAM
• 2 GHz or faster processor
• 250MB of available hard-disk space (100MB for ZoneAlarm free firewall)

Microsoft Windows, XP SP2 or SP3
Home / Professional:

• 32-bit, 1GB RAM
• 1 GHz or faster processor
• 250MB of available hard-disk space(100MB for ZoneAlarm free firewall)

Feature-specific requirements

Browser security requirements

• Microsoft Internet Explorer 7, 8, 9
• Mozilla Firefox 3.0, 3.5, 3.6, 4, 5

Spam filtering and MailSafe requirements (not available in all ZoneAlarm products)

Mailsafe supports SMTP outbound only

Outlook Express

• POP3: Supported
• IMAP: Supported if Outlook Express is set to download the entire message (not just message header)

WinMail

• POP3: Supported

Note: WinMail IMAP not supported

Outlook 2003, 2007, 2010

• Exchange: Supported
• POP3: Supported
• IMAP: Supported if Outlook is set to download the entire message (not just message header)

Hard Drive Encryption requirements (optional add-on; not available in all ZoneAlarm products):

• Most Laptop and Desktop PCs are supported: Your computer is checked for compatibility at installation time. Not all systems will be compatible.

Parental controls (Not available in all ZoneAlarm products):
Parental controls work for any Web browser, and for any program that can be used to surf the Web.