On a previous blog post I explained how to solve some warning events logged on the SharePoint server application logs (http://blog.hametbenoit.info/Lists/Posts/Post.aspx?ID=159)

Unfortunately, it appears that the SP1 for Windows Server 2008 R2 is resetting the NTFS security settings to default one.

So, don’t forget to reapply the steps I provided after applying the SP1 for Windows Server 2008 R2.

As reminder, these events seems to be a missed level of logging as no issue appear.