Microsoft announced on its website over the weekend that it will release only four patches – three for Office and one for Windows – on its first "Patch Tuesday" of the year. 

An original notice on its site last week stated it would release eight patches for vulnerabilities listed as "important" and "critical" on Windows, Office and Visual Basic.
The four patches scheduled for Tuesday are deemed "critical", the software giant's highest level of severity.
The company would not be drawn on the reasons for the withdrawal of the other four patches, and did not disclose their scheduled posting.