Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.

Why not jazz up Windows 7 with a downloadable theme?

You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64. Even better all of these themes are free. To install any of these themes, just unzip the archive once downloaded and double-click the themepack file. Windows does the rest

1. Ocean Life HD

This beautiful high-def theme contains nine undersea images featuring colourful marine animals going about their everyday lives.

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2. Commodore 64 theme

Miss your old Commodore 64? Now you can relive the glory days of the '80s with this remarkably complete Windows 7 theme.

NEXT PAGE: 3D desktop

  1. Jazz up your Windows OS
  2. 3D desktop
  3. Peace on Earth
  4. Maple leaves in autumn
  5. Stars and stripes

Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.

3. 3D Desktop

Not only is this theme tremendously popular, but users have been giving it four-star reviews, too. 3D Desktop packs in dozens of gorgeous high-def images - futuristic abstract art, moody landscapes, tropical paradises, and much more.

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4. Pug Windows 7 Theme

Load up this theme, and you get a beautifully detailed image of a pug puppy on your desktop. What could be cuter than that?

NEXT PAGE: Peace on Earth

  1. Jazz up your Windows OS
  2. 3D desktop
  3. Peace on Earth
  4. Maple leaves in autumn
  5. Stars and stripes

Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.

5. Peace on Earth

Now we've come to my personal favourite. This soothing theme displays Earth floating in the inky black of space.

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6. Animals

This is the first theme on my top 10 list to include lively sounds as well as gorgeous pictures. You get ten beautiful wildlife scenes, and your Windows alert tones change to animal calls.

NEXT PAGE: Maple leaves in autumn

  1. Jazz up your Windows OS
  2. 3D desktop
  3. Peace on Earth
  4. Maple leaves in autumn
  5. Stars and stripes

Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.

7. Maple leaves in autumn

Feeling anxious and trapped at your desk? Load up this beautiful image of autumn leaves floating in a bubbling brook, and relax.

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8. Sweetie theme

This pastel-coloured theme will satisfy your sweet tooth and brighten up your desktop.

NEXT PAGE: Stars and stripes

  1. Jazz up your Windows OS
  2. 3D desktop
  3. Peace on Earth
  4. Maple leaves in autumn
  5. Stars and stripes

Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.

9. Stars and stripes

If you're fond of the US, this is the theme for you. It goes beyond the usual flag-waving imagery, offering some very nice artistic variations on the Stars and Stripes.

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10. Hong Kong City Nights HD theme

Does your desktop seem kind of blah? Jazz it up with this dazzling image of Hong Kong at night.

See also: 10 must-have downloads for Windows 7

  1. Jazz up your Windows OS
  2. 3D desktop
  3. Peace on Earth
  4. Maple leaves in autumn
  5. Stars and stripes