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HOWTO: Upgrade Windows 7 beta to RC1 directly

Follow these steps to perform a hack upgrade of your Windows 7 beta to RC1

  1. Obtain the Windows 7 RC1 ISO file.
  2. Extract the content of the ISO file to a folder using utility like IZArc
  3. Inside that folder, open the sources directory.
  4. Open cversion.ini in Notepad or similar text editor.
  5. Change the 4-digit number after the word MinClient build number to a lower value, like from 7100 to 7000.
  6. Save the file.
  7. Start the Windows 7 installation
  8. When presented with the option of Upgrade or Clean Install, choose Upgrade….voilà!
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About Shawn Brezny
Film photography with Leica M2 and Hasselblad 501CM. Husband. Father. Christian. Eph 2:8

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