As pointed out by several folks writing in to the ISC Handlers group, Microsoft has updated its Security Advisory 975497 - Vulnerabilities in SMB Could Allow Remote Code Execution - to include a "Fix it" workaround that makes it rather easy to disable SMBv2.

The "Fix it" links can be found in two locations:

- Microsoft Knowledge Base Article 975497

(and my personal favorite)

- The Microsoft Security Research & Defense Blog

G.N. White

ISC Handler On Duty (Maybe they should call it "One Click")