Trim: Windows the blog article to read

http://blogs.msdn.com/b/e7/archive/2009/05/05/support-and-q-a-for-solid-state-drives-and.aspx

Summarized: 

Trim is enabled on Windows 7 by default, if .... (read)

How to check on windows 7 if Trim is enabled?

C:\Windows\system32>fsutil behavior query DisableDeleteNotify

DisableDeleteNotify = 0

0 means apparently enabled.