Windows 7 Logo — Black, Dramatic, Digital Art, Mountains

1280 × 1024

Windows Vista Logo — Gray, Minimalist, Digital Art, Text

1600 × 1200

Windows 7 Logo — Blue, Serene, Morning, Digital Art, Bird

1600 × 1200

Windows 7 Logo — Black, Minimalist, Digital Art, Text, White, Gray

1920 × 1080

Windows 7 Logo — Blue, Minimalist, Digital Art, Number Seven

1920 × 1200

Windows 7 Logo — Black, Windows 7

1920 × 1200

Ubuntu 10.4 Logo

2560 × 1600

Ubuntu Logo on Background — Blue

1280 × 1024

Ubuntu logo on gray background

1920 × 1200

Ubuntu Logo on Background — Orange, Calm

1600 × 1024

Ubuntu Logo on Screen — Black

1920 × 1200

Ubuntu 14.04 Logo — Red

1920 × 1200