I currently have Vista Home Premium 32bit and want to install Vista Business 32 bit. Is this upgrade possible without needing to do a clean install, meaning none of my software will be removed?
Hardware: Duo Core 2Ghz, 3GB RAM
Yes.
This is possible if you have a disk from a retail package (non-OEM) or you purchase an Anytime Upgrade coupon.
Anytime Upgrade is by far the easiest way of doing this as it only takes a few minutes from start to finish. Alternatively, if you have the actual disk, you will need to do an upgrade install. The easiest way to do this is to put the disk in from within Windows and follow the on screen instructions.
If you already have the disks/coupons, go for it. If you don't and need to purchase them, I highly recommend you take this opportunity to switch to Windows 7 as the upgrade works well and it will be the same price, but performance should be better.