Upgrade Vista and Windows 7 to Windows 8.1

Remember that you can only use the Upgrade versions of Windows Vista and Windows 7 if you already have a qualifying version of Windows installed on the computer to upgrade it. Those versions of Windows won’t install on a blank hard drive or SSD; the Upgrade version has to be able to detect a version of Windows that qualifies to be upgraded to Windows 8.1. Therefore, you should always have a restorable system image or full backup that can be put back on a hard drive or SSD that was formatted due to a system failure or that can be restored to a new drive.

Windows 8.1 and 8.1 pro and 8.1 OEM only come in full versions, which means that they can be used to upgrade Windows 7 or perform a clean installation. If you’re running Windows Vista or Windows XP, you can’t perform an in-place upgrade, you have to perform a clean installation from Windows 8.1/Pro on a DVD that you create from the downloaded ISO file bought online from the Microsoft Store. The Windows 8.1 Pro Pack upgrades Windows 8.1 to the Pro version.

About Eric Legge 269 Articles
I am an experienced PC technician who has been the owner and sole writer of the PC Buyer Beware! website since 2004. I am learning all the time in this very dynamic, ever-changing field.