I'm having an intermittent problem with Sophos 9.0.0. Once or twice a week my PC locks up for a minute or two, and explorer hangs temporarily. Apps work for a while provided I can get to them, which can be difficult without explorer. I usually notice the problem when I try to start Winzip and it doesn't appear. When that happens Winzip won't ever manage to start itself up until after a reboot.
Every time this has happened the tooltip on the Sophos system tray icon has said that it is updating, and continues to say that no matter how long I leave it. If I try to initiate an update from there, the dialogue appears and stays indefinitely, and if I press cancel the dialogue goes, but nothing else changes. If I try to open the control app the splash screen appears, sits on top of everything and I can't get rid of it. The app itself never opens. I also can't shut down the "Sophos Anti-Virus" service. The only way to get it all working again is to reboot. After that it updates itself OK and everything works.
Most of the time, there's no problem at all with it. I suspect it might be trying to start an update immediately after booting and it's occasionally tripping over something else that's happening, but I can't think how to find out what, because it rarely goes wrong.
The machine is running Windows 7 Ultimate, fully patched.
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