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Windows Vista SP1 Prerequisite KB937287

Windows Vista SP1 Prerequisite KB937287

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Back in February, we posted about the release of a couple of prerequisites for Windows Vista Service Pack 1.  While several million customers installed the updates successfully, you may have read that a few customers experienced an endless reboot cycle while installing one of the prerequisites: KB937287, the Servicing Stack Update (SSU), which contains the Service Pack 1 installation program.

As posted last month on the Windows Vista blog, we suspended automatic distribution of the SSU while we investigated the problem.  Over the past few weeks, we’ve learned a lot more about the problem and have taken steps to address the issue. Today, we’d like to let you know that we are resuming automatic distribution of the SSU tomorrow and provide more clarity on what happened.

To clear up any concerns for those of you who have already installed the update: There is no problem with the files that make up the Servicing Stack Update (KB937287); the problem some customers encountered was with the installation process for the update.  That means if you already have the update installed, you do not need to uninstall it or install the rereleased version of the update.   

So what caused the problem?  Well, the SSU has special code to check whether there are any pending reboots or other updates to install.  If it sees either of these circumstances, it prevents the install from starting.  During our investigation, we discovered that there were a few unknown and rare events during the middle of the installation of the update that could cause the update to think it needed a reboot to complete the installation. If this happened, the system entered a repeating reboot loop.

To address this problem for people who have not already installed the SSU, we are releasing a fix tomorrow which will install prior to the SP1 Servicing Stack Update.  This pre-SSU update helps to ensure a smooth install of the SSU by working to prevent the system from rebooting during the SP1 SSU installation.  We also made additional changes to the SSU installer code, so that it checks for and requires the pre-SSU (KB949939) before it will install. 

These two updates should now install seamlessly through Windows Update, in the proper order, so those of you with WU set to “install updates automatically” who haven’t already installed the SSU don’t have to take any further action. For those using the standalone download of SP1, the issues we encountered do not affect that method of installing at all.

--MU Team

Comments
  • I have a quick update for you about Windows Vista SP1. The Microsoft Update Blog contains some important

  • The Microsoft Update blog provides an update (ahem) explaining how the company is resuming automatic

  • Hi.

    We can wait in Italy SP1 9 APril

    and 18 APril for Windows Update??

    THX

  • Pour mettre à jour Vista vers le SP1, il est nécessaire d'installer certains pré-requis. Parmis ceux

  • If you have not had been offered Windows Vista Service Pack 1 yet you either have drivers on the "bad"

  • Microsoft Monday said it would resume automatic distribution of a Windows Vista update on Tuesday that

  • Windows Vista SP1 Prerequisite KB937287 and Windows Vista SP1 Update If you have not had been offered

  • • New Massive Botnet Twice the Size of Storm -- Kraken botnet infiltrates 50 Fortune 500 companies. • TailRank Exposes Massive Number Of Blogs Hacked -- Can cause them to be delisted from Google. • Web Page Can Take Over...

  • I already have all the pre-required updates for SP1 and have updated my video driver, as I have read that can be a problem. Yet, I still have yet to see SP1 in my Windows Update. Is there some tool I can use to determine if all my drivers are updated?

  • PingBack from:

    http://windowsaddict.blogspot.com/2008/04/windows-vista-sp1-prerequisite-kb937287.html

  • Windows Vista Service Pack 1 (SP1) kann nicht installiert werden

  • Back in February, Microsoft posted about the release of prerequisites for Windows Vista Service Pack

  • The Italian's SP1....When? Please answare!!! Thanks :)

  • @artechweb  

    we waiting :(

    why not respond wu team??

  • It didn't really work out on my other pc, now I'm back on Windows XP again..

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