To start a manual update, right-click on the blue shield with the red cross and choose .The workaround is to update Sophos manually once you have connected to the internet.Additional Sophos software is available to registered IT Support Staff - see the Information for IT Support Staff page.Sophos for Windows version 10.0 runs on Windows 7, XP (SP1a and above), Vista and 2000 (SP3 and above).
However because the shield is hidden it does mean that you are more likely to miss problems with your Sophos installation.
If the shield disappears permanently then unless you are running Windows 7 try restarting your computer; if that fails try reinstalling Sophos.
On Windows 7 however there may be a different reason and you should try the following first before restarting your computer or reinstalling Sophos.
If the Oxford Sophos Antivirus Installer fails to install Sophos for Windows it will display a red shield and the message Install Failed. There can be a number of reasons why the installation fails but the most common reason is that you already have another antivirus software product installed such as a product from Norton, Mc Afee, AVG and others.
If you already have up to date antivirus software installed and protecting your computer then you don't need to install Sophos as well.