Unfortunately there is no way to 'upgrade' from 32-bit Windows to 64-bit Windows, so that's not possible. But since Windows came preinstalled on your computer, the choice of what versions and flavors of Windows came with it are made by the hardware manufacturer.Retail copies of Windows (those purchased in stores) do come with both 32-bit and 64-bit discs but OEM copies (those sold with new computers or those intended for installation on new computers) only come with one or the other, not both. So in the end yes,whether or not you can get a copy of 64-bit Windows without buying it is between you and the computer manufacturer.' Prince Harry' wrote in message news:. Email address is removed for privacy.Remember - This is a public forum so never post private information such as email or phone numbers!I bought Vista HP 2 years ago but have recently learned of the advantages specifically being able to add extra memory with a 64 bit operating system.I tried to buy the upgrade DVD from Microsoft but it does not accept the Product Key and when I phoned I was advised that I should ask the system manufacturer (Medion) for the upgrade disk.Medion do not appear to be able to assist. They claim the 64 bit disk was supplied with the computer.well, if so, I have never seen it, I was given a 32 bit disk and a restore disk but I see no sign of a 64 bit system on the disks supplied with the computer.Moreover, if I have understood what I have read on the MS Vista site it appears that Vista was sold as a 32 bit system and a 64 bit DVD can be purchased subsequently.Can anyone advise how I can upgrade for a reasonable outlay please?Should I press Medion for support on this, is 64 bit support part of the deal? Retail copies of Windows Vista Home Premium and Business only contained the 32bit dvd and instructions on how to obtain the 64bit dvd from Microsoft.

• Vista Ultimate 32 Bit Iso

Only retail Ultimate contained both dvds. Home Premium and Business users had to log onto a Microsoftwebsite, supply the product key, and pay $10 in order to get the 64bit dvd.

Vista Ultimate 32 Bit Iso

The dvd was sent by mail. The website was closed when Vista was removed from retail sales so Vista users who did not order the 64bit dvd before that could longer get one.Users whose Windows came preinstalled on their new computers were only entitled to the version they ordered at the time of the computer purchase. They could not use the website to obtain a dvd because that priviledge only applied to retail purchasers.OEMs were not required to supply alternative media either so Vista OEM users were never entitled to both versions of the software.The practice changed with Windows 7. All retail copies of Windows 7 include both dvds. However, it is still true that OEM users are only entitled to the version supplied by the OEM at the time of purchase of the computer. Colin Barnhorst.