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I have a bit of an odd question: If I install two Windows 7 (one for 32-bits and one for 64-bits) can they share the same partition?

I want to do it because I want to have both OS but I don't want to have to copy the data from one to another. e.g. if I download a file on the 64-bit OS I want to be able to access it from 32-bit without having to copy/duplicate it there and have 2 separate versions on my hard drive.

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Even if they don't share a partition, you'd still be able to access data on the other's partition. – Gabe Jun 15 '13 at 14:37
@Gabe Really? how? – MasterMastic Jun 15 '13 at 14:37
C:\Users\<username> – gronostaj Jun 15 '13 at 14:38
Just set the permissions so that "Everyone" has access. – Gabe Jun 15 '13 at 14:38
Or simply use a third common data partition. – Karan Jun 15 '13 at 15:49
up vote 0 down vote accepted

It should be possible with NT 6.x fast installer, but it may not be a perfect solution. Intalling two OSes on one partition has some other implications like shared Program Files folders (which won't work as expected). Maybe you should simply create a junction to the profile directory on another partition.

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Junction? what does that mean? can you elaborate? – MasterMastic Jun 15 '13 at 14:38
Directory junction is a mechanism that allows you to "connect" one directory or file with different names on different drives and in different paths. You can read about it on Wikipedia or google it. Junctions can be created with a tool called mklink. – gronostaj Jun 15 '13 at 14:41

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