Slipstream Windows 7 SP1 Disc: The Complete Guide

Installing Windows 7 can take a long time. ┬áThat’s why us techies have to slipstream a Windows 7 SP1 disc to make the process easier. This process will take your non-service pack Windows 7 installation disc and allow you to burn a new disc with SP1 merged. No more running Windows Update for hours after a Windows 7 installation.

  1. Download the Windows 7 Service Pack 1 standalone EXE file.
    • windows6.1-KB976932-X64.exe for 64-bit
    • windows6.1-KB976932-X86.exe for 32-bit
  2. Download and install the Windows Automated Installation Kit. The file Microsoft provides is an ISO image file. You will need to burn a disc with this file, then run the WAIK installer from the disc. (This step only required if you are performing these steps on a non-Windows 7 system)
  3. Download and install RT Seven Lite.
  4. Run RT Seven Lite.
  5. On the Home tab, Click Browse and select Choose OS path.
  6. Place your Windows 7 installation disc into your DVD drive and select the drive. The software will prompt you to copy the files to a location on your hard drive. In this example, I used F:\Win7. RT Seven Lite copied my entire Windows 7 installation disc to F:\Win7\GRMCPRXFREO_EN_DVD.
    File location
  7. When prompted, select the version of Windows 7 you’ll be working with. Check the Slipstream Service Pack box, then click OK.
    Select version of Win7
  8. Click the Browse button and select the EXE file you downloaded in step 1. Click Start and the service pack files will be merged with the installation disc files. This may take a long time. For me it took over an hour.
    Service pack integrating process
  9. Once its finished integrating, click Proceed.
    Service Pack 1 integrated successfully
  10. Click the Tasks tab on the left. Check the ISO Bootable box.
    Note: It may take some time for it to respond when you click Tasks, but be patient. In my case, I had to click Tasks a few times before it displayed anything.
    RT Seven Lite Tasks
  11. Click the ISO Bootable tab at the bottom-left. This will present a screen to burn a CD. Place a burnable DVD in your drive and set Mode to Direct Burn, select a Burn speed, then click Direct Burn.
    Note: The Burn speed failed to display a value for me at first. I had to eject then re-insert the burnable disc. I then had to change the Mode setting to something else before flipping it back to Direct Burn.
    Disc burning settings

That’s it! You’re Windows 7 disc should now burn with SP1 slipstreamed. You can now boot from the disc and install Windows 7 without having to install Service Pack 1 separately. Click Finish to exit the software. Wait patiently as it cleans up files and closes.

Just to be sure, I tested the disc by installing Windows 7 on a VMWare virtual PC. It worked fine.

VMWare shows SP1

Please feel free to let me know of any changes or additions I should make to this post in the comments sections.


  1. Leo C. says

    Is it correct that, with a slipstreamed service pack, windows update will not see thats its already installed, and therefore suggest to install service pack 1 in windows 7 pro ? Which means I should uncheck that update on the list of available updates ?

  2. DBR says

    On Step 6, only boot files were getting copied. I had to download Step 2 i.e. WAIK even as I was performing on my Windows 7 environment.

Leave a Reply

Your email address will not be published. Required fields are marked *