Installing .NET Framework 3.5 SP1 fails on Vista 32-bit RRS feed

  • Question

  • When I attempted numerous times to install .NET 3.5, it fails. This was while back. Today I decided to install something but it requires installing .NET 3.5. Here is the error message:

    Component .NET Framework 3.5 SP1 has failed to install with the following error message:
    "The specified service does not exist as an installed service. "

    The following components failed to install:
    - .NET Framework 3.5 SP1

    How do I fix this?
    Sunday, January 24, 2010 6:53 PM


  • Hi xMoTioNzz,

    Thank you for your post.

    To install .NET Framework 3.5 with SP1 on Vista, could you please help me to try the following points?

    1. Check whether you have turned on the windows feature of .NET Framework 3.0.
    Please go to Control Panel -> Programs and Features -> Turn Windows features on or off -> Check the box next to Microsoft .NET Framework 3.0.

    2. Use Verification Tool to verify .Net Framework 2.0, 3.0. If .Net Framework 2.0 and 3.0 cannot be verified on your computer, you can try to follow the steps mentioned in the following blog to repair the .NET Framework 2.0 and 3.0 on Windows Vista.

    3. If .NET Framework 2.0, 3.0 are verified successfully, please download .NET Framework 3.5 Service Pack 1 (Full Package) and install it.

    4. If the installation fails, please collect the log file.
       The steps to collect the log:
       - Try to clean your "%temp%" folder (Start Menu >> Run >> Type "%temp%")
       - Install .NET Framework 3.5 Service Pack 1 (Full Package) 
         (The installer must be run with administrator privileges - Right-click the installer >> "Run as Administrator")
       - Collect the logs from "%temp%" folder
         Collect tool:
       - Send file to me (
         Note: Please attach the link of this post in the mail.

    Hope this helps! If you have any concern, please feel free to let me know.

    Best regards,
    Yichun Chen
    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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    • Marked as answer by YiChun Chen Monday, February 1, 2010 2:45 AM
    Tuesday, January 26, 2010 7:38 AM