I just successfully finished the upgrade from Win7 Beta to RC (64-bit edition). It took a couple of hours, but so far all worked seamlessly.

All (important) systems seem to be up and running. D2009 starts, compiles and runs my last projects – interestingly the 64-bit Thread issue seems to occur less often now.

Upgrading from Beta to RC is not recommended though – in fact the installer will refuse to do so. Only upgrading from Vista is a valid option.This is not really because of technical reasons, it’s mostly because MS isn’t interested in feedback for Beta –> RC upgrades, as this won’t be a function of the final product.

Fortunately there is an easy way to “patch” the setup, so that it will allow you to do that upgrade. Steps are explained in this Windows 7 Engineering blog entry.  It’s quite a long article with a lot of topics. Look for “Here’s what you can do to bypass the check for pre-release upgrade IF YOU REALLY REALLY NEED TO:

Be careful : My upgrade worked fine, but MS gives absolutely no warranty on this. Backup your data …

  • http://www.dummzeuch.de Thomas Mueller

    So you are telling us that MS usually gives a warranty on everything and this is a rare exception where they don't? Why do I have doubts?

  • http://www.monien.net/blog Olaf Monien

    I am saying MS *explicitly* gives no warranty here. In other cases
    it's probably not that obvious ;)


    Grüße / Regards,
    Olaf Monien

    Sent via iPhone

    Am 09.05.2009 um 21:18 schrieb “Disqus”<
    >:

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