As is standard M.O. with any new version of Windows, a clean install is best. But clean installs are time consuming as they'd require back ups and reformats and installs and reinstalls and configurations. For some, just doing an upgrade is the preferred way.
Supposedly, the upgrade from Windows Vista to 7 is the most straightforward yet, thanks to the similarity in underlying software. Unfortunately, some users are finding out that the upgrade to Windows 7 could have disastrous, crippling effects.
Participants in a Microsoft support forum are now posting in a thread titled, "Windows 7 - Install Message - Upgrade Unsuccessful." The first poster detailed his or her problem:
"Hello, I purchased Windows 7 Home Premium 32-bit. I am attempting to upgrade from Windows Vista Home Premium 32-bit. On the last step of the upgrade (transferring files/programs/etc), my laptop rebooted and came to a screen telling me the upgrade was unsuccessful and my previous OS files would now be restored. My laptop is now in what seems to be a loop of restarting and trying to restore the files.
"Each copy of Windows I have are genuine (not pirated or anything), and I ran the Windows 7 Upgrade Compatibility Advisor and received no warnings from it before attempting to upgrade. My laptop meets the minimum requirements for upgrade."
Now other users are reporting the same type of problem, though there hasn't yet been a commonality other than trying to upgrade. Some users are upgrading using retail, pressed media, while others are using the installer files from Digital River's $29 student offer.
So far the problem only seems to affect a very small number of users, but Microsoft still has yet to find a solution. One Microsoft support engineer suggested to those who had to burn their own discs from images to use the slowest write speed as possible to avoid corruption.
Have you been having any problems upgrading from Vista?
On another note Microsoft's 64bit upgrades from Digital River require a 64 bit OS already in place to unpack. Minus one for Microsoft for forgetting to tell everyone.
The fact is, that even with the problem in place, the software and documents can still be recovered. Unfortunately, for my fellow mac users who upgraded to snow leopard and lost their documents and software to the mac upgrade bug (that deletes files and user information), im sorry, but hey atleast they have patch so you dont loose all your data twice :)