Hi - I bought an Acer laptop with Vista 32 bit and took advantage of the upgrade offer to Win 7. I hoped for two discs; one offering a 32 bit upgrade and another allowing a clean install of 64 bit (which other folks seem to have been sent). Instead I got a 32 bit disc. I have upgraded to 32 bit Win 7. Any suggestions on cheapest way to get 64 bit Win 7?
I think according to their rules, as you originally had a 32-bit OS installed, they can only send you a 32-bit upgrade. This is because one cannot technically upgrade a 32-bit OS with a 64-bit one. One can probably do a clean install with a 64-bit upgrade disk, but not an 'upgrade' install.
The cheapest way to an upgrade disk is if you or a family member is a student that meets these criteria click here. If yes, then you can have 64-bit Win7 for £35 click here (strangely there's no Home Premium). Install instructions click here.
I purchased the Windows 7 Upgrade Family Pack, which came with 32 and 64 bit versions on separate disks, I was able to install Windows 7 64-bit onto the same drive Vista 32-bit was on, on my desktop machine. I had no problem installing or activating it at all.
I didn't install Windows 7 upgrade by running it from inside Vista, I booted from the DVD and selected custom install and at the end had a windows.old folder which relates to Vista on the drive, which I've now deleted to free up space. I guess booting from DVD and selecting custom installation would be considered a clean install and I can confirm it will upgrade Vista 32-bit to Windows 7 64-bit.