Have tried upgrading free zone alarm from version 7.0.302.000 to 7.0.337.000 but every time i try upgrading, the programme stops responding so I reboot and I'm back to square one and zone alarm hasn't upgraded. Have tried uninstalling using the zone alarm uninstall feature but again the programme soon stops responding. The computer itself does not crash. Any suggestions?

Operating System:Windows XP Pro
Software Version:
Product Name:ZoneAlarm (Free)