HP won't support Windows 8 to 7 downgrade on consumer PCs

Major bank downgrades Nokia again, recommends break-up and sell-off

Microsoft extends Windows XP downgrade rights until 2020 [Update]

Microsoft sued for charging consumers to downgrade to XP

Dell triples charge to downgrade PCs to XP for $150

XP OEM Licensing Extension Is Urban Myth

As WinXP Deadline Looms, OEMs Turn To Vista Downgrade Rights

Sony dismisses rumours of PlayStation 3 downgrade

Prudential's AMD downgrade