During the upgrade of Sophos SafeGuard Configuration Protection 6.00.0 to 6.00.1, the Sophos Client Firewall fails to block data traffic and is unable to restart after a reboot. The Sophos Anti-Virus Client is unable to perform a scan and the Sophos tray icon will no longer be displayed.
First seen in
SafeGuard Configuration Protection 6.00.1
SafeGuard Configuration Protection 6.0
Windows Vista x86
Windows 7 x86
x64 Operating Systems are not affected!
During the upgrade from Sophos SafeGuard Configuration Protection 6.00.0 to 6.00.1 (actually during the uninstall of SGNCPClient.msi), the registry hive
HKEY_LOCAL_MACHINE\SOFTWARE\Sophos will be deleted entirely by the setup process. The registry hive will be restored after a reboot but cannot be completely restored.
What To Do
A hotfix for the Sophos SafeGuard Enterprise Configuration Protection 6.x upgrade scenario is available. Please note that with the hotfix, the SafeGuard Configuration Protection 6.x upgrade procedure changes (in a good way, no uninstall of the old Sophos SafeGuard Configuration Protection Client is required anymore and therefore a previously required reboot can be skipped).