The following topics contain information about upgrading and installing Windows 7—including procedures, best practices, and the difference between performing an upgrade and doing a custom (or clean) installation of Windows.
Installing and reinstalling Windows 7
Installing Windows: frequently asked questions
32-bit and 64-bit Windows: frequently asked questions
Install more than one operating system (multiboot)
Windows installation problems: frequently asked questions
For step-by-step tutorials on how to upgrade a computer running Windows XP or Windows Vista to Windows 7, go to Upgrading from Windows XP to Windows 7 and Upgrading from Windows Vista to Windows 7 on the Windows website.
