What are "themes"?

Themes control the appearance of Windows XP, with themes you can change the desktop appearance, the look of icons, your screensaver, and have different sounds among other things.

Windows XP has some themes built-in, and you can also download themes from a variety of different places online.

below is the link , how to do it :

http://www.helpwithpcs.com/tipsandtricks/changing-theme-win-xp.htm

i presume you are using win7. go to your desktop and right click with your mouse and select personalize. it will take you to themes

Good Day User,
This link may help you for the themes you are looking for. Enjoy. http://en.softonic.com/s/free-style-xp-themes
Thank you!

Hi,
Right click anywhere on the desktop screen,you will get a drop down menu.Click "properties"(for win xp) or if its win 7,select the last entry on the list.You will get your theme settings.
Thank You.

Youcan add themes to your phone for free from certain websites. Many ofthese sites don't require registration in order to browse and installtheir themes.

1. Visit a website thatoffers free downloadable themes. Some of these websites include Mobile9, Zedgeand Cell Phone Theme (see Resources). 2. Scroll through theavailable themes. You can select your cell-phone model from the list to viewthemes specific to your model. You can also select a particular category toview themes only in that category. 3. Select the particulartheme that you want to download. Click "Download" or "PCDownload" and save the file on your computer's desktop. 4. Connect your cell phoneto your computerusing the phone's supplied USB cable. 5. Go to "Start,""My Computer." Open your cell phone's folder and go to the"Themes" folder.6. Dragthe downloaded themes from the desktop to this folder and disconnect the USBcable when the theme has been transferred

mcdevito75 here, Yes you can change the theme or your monitors backround look. Click Start, the control panel, the Appearance and themes, then Backround, here you will find your coice of backround themes for your monitor, once you choose which theme you click ok, and your done.

Microsoft windows 7 has default 5 theme but Windows 7 beta 1 build 7000 onwards has several hidden & locked themes provided for regional countries such as Australia, Canada, Great Britain, United States and South Africa.Since these hidden themes are installed along with your Windows 7 installation you can unlock/unhide these hidden Windows 7 Themes for regional contries. Below are three deferent methods to get Windows 7 hidden themes.
Screenshot of Default Windows 7 Themes Method 1: Steps to Unlock & Unhide Windows 7 hidden locked Themes1. Unhide the Windows 7 System and Protected Operating System files from Windows explorer -> Organize -> Folder and Search Options -> view tab
2. Navigate to C:WindowsGlobalizationMCT.
3. Open a MCT-(AU, CA, GB, US, or ZA) folder for the regional theme that you want.
NOTE: AU, CA and ZA regions all have the same themes though.
4. Open the Theme folder in the selected region folder.
5. Select the .theme file to use it.
NOTE: Once you select a .theme file, Windows 7 will save it so that you will be able to change or select this theme again from within the normal Personalization window location.
6. Hide the Windows 7 System and Protected Operating System files.
7. Enjoy your new regional themes!!
Method 2: Using windows 7 Search (Simplest Method)1. Go to Windowswinsxs Directory
2. Search for *.theme.
3. Double click themes with name in the format of XX to apply and save the theme.
Method 3: Registry Entry1. Open notepad and copy past the following lines
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionThemesInstalledThemesMCT]
“%windir%\Globalization\MCT\MCT-AU\Theme\AU.theme”=””
“%windir%\Globalization\MCT\MCT-CA\Theme\CA.theme”=””
“%windir%\Globalization\MCT\MCT-GB\Theme\GB.theme”=””
“%windir%\Globalization\MCT\MCT-US\Theme\US.theme”=””
“%windir%\Globalization\MCT\MCT-ZA\Theme\ZA.theme”=””
[HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerWallpapersKnownFoldersWindows WallpapersMergeFolders]
“%windir%\Globalization\MCT\MCT-AU\Wallpaper”=””
“%windir%\Globalization\MCT\MCT-CA\Wallpaper”=””
“%windir%\Globalization\MCT\MCT-GB\Wallpaper”=””
“%windir%\Globalization\MCT\MCT-US\Wallpaper”=””
“%windir%\Globalization\MCT\MCT-ZA\Wallpaper”=””
2. Save file as allregional.reg on desktop.
3. Double click on allregional.reg to add above registry entry.
4. Now you can access all Windows 7 Hidden & Locked Themes via right clicking on desktop and personalize settings.
We have created allregional.reg file for you, Download allregional.reg and run it on your machine and access hidden Windows 7 Themes instantly.
Screenshot of Unlocked – Unhide Windows 7 Hidden Themes

Just load all your downloads into your computer,then right click on the desktop then press tab key written themes then click the theme you want to use.then it will change automatic.

just download and install whatever themes u want in desktop,
and copy the theme files into c:\windows\resources\themes
and u find ur themes in process

Download and use a program called styleXP from here, it's your last solution : http://www.tgtsoft.com/download.php