Windows logo on a blue background

1600 × 1200

Windows 7 logo on blue background

1920 × 1200

Linux Logo on Blue

1600 × 900

Ubuntu logo on fiery background

1024 × 768

Ubuntu logo with blue energy

1280 × 800

Windows 7 Logo — Blue, Dramatic, Digital Art, Number 7, Light Beam, Grunge Texture

1920 × 1200

AppStorm Logo — Blue

1900 × 1200

Windows 8 logo

1920 × 1080

Windows 8 Logo — Blue, Calm, Digital Art, Cursor

1600 × 1000

Windows 7 Logo — Black, Minimalist, Digital Art, Text, Diagonal Pattern

1600 × 900

Windows 8 Logo — Gray, Neutral, Digital Art

1600 × 901

Windows 7 Logo — Blue, Clean, Modern, Digital Art, Text

1600 × 1000