This site requires the Calibri Font to look proper, be sure to download it: Here

Downgrading Windows 7 Ultimate RC to Premium or Professional                  Print Preview Print Preview

Many users are running Windows 7 Ultimate RC and would like to throw caution to the wind and simply install Home Premium or Professional right over their current install.

1. Changing two registry keys in Windows 7 Ultimate RC:

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2. Make sure to spell the editions correctly: HOMEPREMIUM, Windows 7 HOMEPREMIUM  ( or Professional, Windows 7 Professional )

Note: Different Languages/DVD’s  are spelled differently, look on the DVD that you have for the correct spelling you can see a list like this by putting the DVD in and starting the install without entering a key. To stop the install at this point click the red X.

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3. Extract all the files from the DVD and change the cversion.ini file to 7100 in the sources folder, so RC can be upgraded to RTM:

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4. Now start the downgrade from the extracted files ( double click setup.exe ).

November 4, 2009 · Filed Under FrontPage, Windows Seven

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Sp00kyNo Gravatar
February 26th, 2010 at 2:23 pm

Thank you, I had RC 64 bit version and wanted to upgrade to ultimate 64 and it was a no no. Now it’s possible thank’s to you.
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  • Comments:
    • rajbir: I need Calibri to Calibri.php to use in FPDF. Doesnt work your font, how to solve it? ...
    • kai: thank's...
    • wai: thank's...
    • Andie: Thank you for sharing! Great resource site! Keep it up!...
    • DamnMachine: Matt: Did you try raising the number to 16?...
    • matt: How do I go back from list view to thumbnails? I somehow changed it....
    • Zen: Thanks a million for sharing this font for FREE!!!!! I've been looking for it for days and I'm so grateful that you're sharing it!!! I'm so glad it works for the Mac too. Again, THANKS A MILLION!!!!!! You saved me! :-D...
    • Pramodh: Thanks. I found this site very resourceful. Recommend it....
    • sham: I need Calibri to Calibri.php to use in FPDF. Doesnt work your font, how to solve it? [root@www makefont]# ls cp1250.map cp1252.map cp1254.map cp1257.map cp874.map iso-8859-15.map iso-8859-1.map iso-8859-4.map iso-8859-7.map koi8-r...
    • Luis: All right ! thanks a lot... files are all good...
    • Boomsticka: Thank you....
    • emiliabergin: thank you very much........
    • IcePic: the webpage even says: "News: Quick and direct: Download: Calibri-all.rar {Unzip it and the right click on each calibri.ttf and choose ..." So the "zip"-ing part seems embedded in peoples minds, even yours. =)...
    • Rajiv: Thank you! :)...
    • sam: thanks for the tip about extracting into the Control Panel Fonts folder, that's the only thing that worked for me, i use Windows/Office XP...