Microsoft has this week quietly admitted on its website that one of its security updates broke printing on pre-Windows 10 PCs.
The MS16-098 patch, issued in August, fixes privilege escalation bugs in kernel-level drivers on Windows Server 2012 R2, Windows 8.1, Windows RT 8.1, Windows Server 2012, Windows Server 2008 R2 Service Pack 1 (SP1), Windows 7 SP1, Windows Server 2008 Service Pack 2 (SP2), and Windows Vista SP2.
It also knackers printing on those operating systems for some applications. Microsoft said: "Print functionality is broken after any of the security updates that are described in Microsoft Security Bulletin MS16-098 are installed if a print application uses the same device context for multiple print jobs."
Oops. The fix is to make sure you install the security patch MS16-106, which was issued last week. ®