A New and Improved Windows 7 Upgrade Chart
These are the ways you can upgrade to Windows 7.
Those of you still running on Windows XP will have to do a clean install of Windows 7 if you wish to move to the new and shiny OS this fall. If you're using Windows Vista, however, you have a decent chance of being able to do an in-place upgrade. Of course, the ease of that depends on the version you're running and the one that you wish to install, which leads to an upgrade-compatibility chart.
The Wall Street Journal's Walt Mossberg received a compatibility chart from Microsoft, plotting out each possible upgrade path from a previous version of Windows to the upcoming release, but unfortunately the chart he received was unnecessarily complicated and convoluted.
Fortunately, ZDNet blogger Ed Bott took it upon himself to fix the chart into something infinitely more sensible and readable, which is included below.
Which upgrade path will you be taking?

Either way I'm likely going from 32bit Vista to 64bit on 7, so clean install is required, but I have a few other machines I'll likely upgrade from Vista or XP to Premium ed of 7.
Fortunately, I'm an action pack subscriber, so I get Windows 7, Office 2010, and more (10 copies of each, 1 copy of Ultimate) for free
That $300 a year is REALLY paying off...
Seriously, wtf. Did you actually take a look at the original and the derivative? The difference is the derivative doesn't make a distinction between 32bit and 64it Versions, and clusters the blocks together.
Thats it.
i'm going 64 bit for sure though...use all my ram for once
I'm going all the way!
ummm what i saw is EVERYTHING, I MEAN EVERYTHING... runs faster and smoother, oh and not to mention no crashes or bloat... but you go ahead the way you are.... i so love computer iliterate uneducated people talking like they know their stuff.... but i guess you havent read one of the many of thousands of articles about how much better win 7 is...especially in 64 bit
yet you don't cite these articles. i have win7 RC on my laptop. does everything the same as vista with the exception of using 25% less memory. vista hasn't crashed on me. runs fast and smooth. please fanboy go elsewhere. insane how new users come on TH and say a person is computer illiterate even if they hate or like vista.
But for now XP is good enough for my notebook, not to mention some devices I have are not yet compatible