I have Vista Ultimate x64 and am thinking of upgrading to the Windows 7 RC. I would like to know that others have perform this upgrade with success before trying it on my own development machine.

My devices are all standard components such as Western Digital/Seagate drives, Gigabyte motherboard and Intel Core 2 Quad processer.

  • Won't the answer to this always be YMMV? – Alex Angas May 1 '09 at 11:04
  • @Alex yes - the experience will always depend on what third party applications and drivers are installed. On the whole though, Microsoft has really done a good job this time around. – Tim Long May 10 '09 at 12:50

It works but Your Mileage May Vary (YMMV).


I just finished an upgrade from Vista Ultimate 64 to the RC Ultimate 64 and it went very smoothly. I actually tried to do a clean install first, but had an issue with my CD Drivers not being recognized. I was running the Beta, so I did the Transfer your files to save my documents and settings. The backup was about 45GB, and when it was done I installed Vista 64 clean, then upgraded it to the RC. Everything worked really well, and the re-import of my data was very smooth as well.

Very pleased with the software - it's looking good.


I was able to upgrade my laptop which had been running (and importantly in my opinion, shipped with) Vista Enterprise to Windows 7 Ultimate Beta and it did great.

Just recently I used the cversion.ini workaround to upgrade the same laptop from Beta to RC1 and that also seemed to work fine, though it felt like it took a long time.

Edit: (It's been a while, I'd forgotten until after submitting the answer) - the Beta upgrade had me remove Powershell 1.0. Also, the Beta->RC upgrade refused to run until I removed a bunch of laptop-vendor-specific TPM/security stuff. So don't be surprised if it asks you to remove software before upgrading.


Yes. .

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