More on the latest variant of 'Petya' Ransomware outbreak here
Sophos for Microsoft SharePoint is not supported on Windows 8.
Known to apply to the following Sophos product(s) and version(s) Sophos for Microsoft SharePoint
Operating systems Windows 8.
Support for Windows 8 by other Sophos products
For an overview of all Sophos products support for Windows 8 and Windows Server 2012, see knowledgebase article Sophos support for Windows 8 and Windows Server 2012 - Overview.
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