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Things to Know about Windows Search 4.0 installation...

Things to Know about Windows Search 4.0 installation...

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Hey everyone,


Windows Search 4.0 has been available on WU for a few weeks now, and we've been getting some questions about installation failures and error code 0x643.  We've done some investigation and found out that the installation failure in this case may actually be caused by the computer configuration, which in most cases can be easily changed to allow for successful installation and functionality of Windows Search 4.0.  


In this case, when WS4.0 runs under Windows Server 2003 or Windows XP, it requires Terminal Services to be running. By default, Terminal Services are set to start automatically in Windows XP and Windows Server 2003; however, system administrator or third-party software may have chosen to disable them. In order to enable installation and subsequent functionality of Windows Search 4.0 on your machine, you need to have Terminal Services running first.


You can check the status of Terminal Services on your system and start the service, if needed, from the Start menu by clicking Run and entering “services.msc”.   Locate Terminal Services – if the status of the service isn’t “Started”, right-click the service, click Properties, set startup type to Automatic, click Apply and then click Start. Now you can restart the installation of Windows Search 4.0 if it was failing before due to Terminal Services not running on the PC.


More information on how to manage services running on your PC is available here and KB940157 provides more information about Windows Search 4.0 and its prerequisites.


 - Hope this is helpful-


  • Thanks for the article, had some problems too but could find the answers at your links, always handy those searches :)



  • Bizarrely I get the 0x643 error yet do have Terminal Services turned on and set to Automatic.

    When I try to manually install WDS4 it can't uninstall the old version so I'm thinking it's not a services issue in all cases.

    Flumoxed here :-(

  • I had the error code 0x643 as well. Very badly information found through the searching machine, causes a lot of problems with our system. This information is finally working good. Thanks for posting! greetz, V

  • I don't suppose you guys have figured out why Windows Search 4.0 fails to install via Windows Update and via download/install on Vista x64 SP1 in some cases yet?  Searching the newsgroups seems to indicate it is an unresolved problem.  It's the same every time, no matter what troubleshooting steps I go through (and I have gone through the steps for every technique I could find to resolve this): downloads, installs, reboots, step 3 of 3, errors out, uninstalls. *sigh*


    Kirk Munro [MVP]


  • This is old news, but if you have the old software it is still usefull for me.

  • The information you give to me and thank you very nice man

  • was a good article by a person's hands thanks to the medical arms

  • was a good article by a person's hands thanks to the medical arms

  • mentions a topic I offer my thanks beautiful

  • What should I do to help search for windows installation if you are happy

  • This is very good news was well informed that the followers of the issue I am. Thank you

  • especially for families with children is nice to have updated objectionable sites is bad for them

  • search version of the beautiful windows in this regard I congratulate out

  • nice to have a system like windows search on this issue we also thank them also would like to thank

  • I like your comments, thank you very download search

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