"Cannot open the file because the file format or extension is invalid" opening Office files

   UPDATE:  We have identified the malware as a new family of ransomware Infection: Trojan:Win32/Bumat!rts AVSubmit Detectable with AM definitions version:  1.157.1559.0 or laterhttp://www.microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Trojan%3aWin32%2fBumat%21rts&ThreatID=-2147341227   Infection: Trojan:Win32/Crilock.A. Detectable with AM definitions version:  1.157.1542.0 or laterhttp://www.microsoft.com/security/portal/threat/encyclopedia/Entry.aspx?Name=Trojan%3aWin32%2fCrilock.A   Definition Information:     Latest public Endpoint AM defs:  1.157.1542.0 (Expect several hours later for 1.157.1559.0 or higher)      http://www.microsoft.com/security/portal/definitions/whatsnew.aspx     Latest Prerelease…

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Office 2013 VBA component stops functioning

We are seeing a few cases where the VBA component of the Office 2013 apps stop functioning.  The applications are working properly when installed.  Then a few days later VBA buttons no longer work.  Here are the scenarios that wehave seen: PowerPoint The Visual Basic, and Macros options are disabled/greyed on the ribbon. When opening…

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PowerPoint 2013 crashes after Click-to-run install with DisplayLinkManager driver

After you install PowerPoint 2013 or Office 2013 click-to-run and launch PowerPoint 2013 it may crash, giving you the following error: “Microsoft PowerPoint has stopped working”.   This problem can happen when the DisplayLinkManager driver is installed on the system. This problem is known to happen with DisplayLinkDriver versions 5.5.29055.0 or 5.6.30272.0.   To resolve…