1. #1
    HappyAndyK's Avatar
    HappyAndyK is offline Site Administrator
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    Post Service Pack installation cannot continue - One or more system components missing

    When installing Windows 7 Service Pack 1 (SP1), you might receive the following error message:

    Service Pack installation cannot continue

    One or more system components that the service pack requires are missing.


    This problem is commonly caused by using third-party products to customize a Windows 7 installation and remove some system components. To fix this problem, follow the steps to reinstall Windows 7, and then try to install Windows 7 SP1 again.

    Source: Microsoft.

  2. #2
    Corrine's Avatar
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    Default You receive exit code 0x800f081f when attempting to install SP1 for Win7/R2

    From You receive exit code 0x800f081f when attempting to install SP1 for Win7/R2
    When you attempt to install the standalone package for Service Pack 1 for Windows 7/2008 R2, you might get the following error:

    0x800f081f <--This maps to CBS_E_SOURCE_MISSING

    You'll be prompted to run the CheckSUR utility and running that utility will not resolve the issue.

    This may be due to a pre-release version of the RSAT tools being installed on the system. To alleviate this failure, do the following:

    1. Uninstall the pre-release RSAT tools

    2. Reboot the system

    3. Install the release version of the RSAT tools (Download details: Remote Server Administration Tools for Windows 7)

    4. Reinstall SP1.

    Remember, if you want to utilize the RSAT tools with SP1 installations you must install them prior to upgrade until the repackaged RSAT tools are released in April.

  3. #3
    Corrine's Avatar
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    Default Windows 7 SP1 Follow-up

    From Windows 7 SP1 Follow-up

    First off – for those of you simply looking to update a single PC or your home PCs, we recommend using Windows Update instead of downloading the standalone installer (or Network Installation Package) from the Microsoft Download Center. Windows Update will provide the best installation experience for you.

    Before installing Windows 7 SP1, please backup your PC (and important files) to an external hard drive, DVD/CD or network location. It is best practice to regularly backup your PC and important files. Windows 7 has impressive built-in backup capabilities which you can learn about here.

    You should also make sure your device drivers are up to date. You can do this through Windows Update or device manufacturer's websites.

    You should also check your PC for any known malware and viruses before installing Windows 7 SP1. You can download our free Microsoft Security Essentials to check for known malware and viruses or use security software from any of our partners. This is super important if your PC is infected; it could impact your installation of SP1 as well as future updates to your machine.

    A few other tidbits:

    * When installing Windows 7 SP1 on a laptop PC, make sure it’s plugged in to an electrical outlet (AC).
    * Your PC will need to reboot after installing Windows 7 SP1 so make sure you save all your work and close your applications before you begin your installation.
    * Installing Windows 7 SP1 will require a bit more hard drive space so if you don’t have enough, I recommend running Windows 7’s built-in Disk Cleanup tool to assist in freeing up hard drive space.

    For those who may want to free up hard drive space, it is possible to remove the service pack installation specific files after installing Windows 7 SP1. After installing Windows 7 SP1, you can remove the service pack installation files by running Disk Cleanup and clicking on the "Clean up system files" button and checking “Service Pack Backup Files” to free up space. See below screenshot.



    We recommend only doing this a few weeks after installing Windows 7 SP1. Please note that once you do this you will be unable to remove Windows 7 SP1 from your PC.

  4. #4
    HappyAndyK's Avatar
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    Default

    Thanks for the 0x800f081f link Corrine. I missed that one!

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