I installed SQL Server 2014 Express SP1-CU3: 12.0.4427.0 on Windows 10 (1511):
Creating a backup with the SQL Server Management Studion fails with error 3264.
The DB seems to be OK: DBCC CHECKDB finishes without error.
In the ERRORLOG follwing lines were traced at the time span, when the error occured:
===== ERRORLOG =====
2015-12-16 12:54:14.85 spid61 Attempting to load library 'xpstar.dll' into memory. This is an informational message only. No user action
is required.
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