windows 7 and wmi repair

a friend sent me an im today asking if i had experienced a situation with windows 7 that generally acted "funky", seemingly hanging applying settings, and such. what he determined from trace evidence is that wmi initiated a repair, but it wasn't initiated by an admin.

i told him i could have sworn i had seen where windows 7 behavior changed and initiated a self-repair when it found certain conditions to be true. (i, of course, cannot find this anywhere now so if you know where it is, please leave a link in the comments!)

long story short, windows 7 does initiate a self-repair. it isn't immediately evident in this article, but this article talks about a hotfix which suppresses unnecessary full diagnostics -- which can be cpu intensive, causing the problems my friend experienced. from the article:

When you perform one of the following operations on a computer that is running Windows Server 2008 R2 or Windows 7, the operation may take a long time to complete:

  • Start the computer
  • Log on to Windows

For example, the computer takes three or more minutes to start.

here's the article if you're interested: http://support.microsoft.com/?id=2617858

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