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Sophos Anti-Virus for Windows NT/95/98/Me: cannot downgrade standalone installation from version 4.7 to 4.6

You cannot downgrade from standalone version 4.7 to standalone version 4.6 with Sophos Anti-Virus for Windows NT and Sophos Anti-Virus for Windows 95/98/Me.

If you must downgrade you will need to reinstall.

What to do

  1. Uninstall Sophos Anti-Virus version 4.6.
  2. Install version 4.7 as described in the Sophos Anti-Virus standalone startup guide.

Technical details

A downgrade apparently takes place without error. However, Sophos AutoUpdate loses all configuration information, including the Primary server address and your credentials.

If you need more information or guidance, then please contact technical support.