So how to setup the default automatic desktop background switcher in Windows 7?

Click Start button on the left bottom of the Window

Search for Desktop Background and from the search results click Change Desktop Background

 You can also open from Control Panel –> Appearance and Personalization –> Personalization –> Change Desktop Background.

Backing up Data in Windows XP:
A backup wizard is provided with the Windows package which is very helpful to create a backup copy of your important documents.

Note: If you have Windows XP Professional, Backup utility is installed by default but in Windows XP Home it is not. However, Backup utility is provided with the CD.
Go to CD-ROM Drive:\VALUEADD\MSFT\NTBACKUP and double click Ntbackup.msi to start the Backup utility.

Follow this procedure to backup data using Backup utility:

When we talk about hard drives, we usually tend to think about a PC.
But the fact is that hard drives are used at a lot many places other than in a PC.
Western Digital manufactures hard drives with special features targeting audio video professionals.
The GreenPower WD AV-GP (WD20EVDS) is one such drive with a 2.0 TB capacity, and boasts of lower power consumption than the earlier versions.
 
Incidentally, this is the second 2.0 TB hard drive in the market from WD, the earlier one being WD20EADS.
The Green moniker means that this is tuned to consume less power and is therefore energy efficient.
Would that affect the performance in any way? Is this drive any different from the other and less expensive counterparts?
We'll find out as we put it through our test suite.

Universal content, universal access, universal clamp down? Image: Universal Music.

Universal Music, the global leader in music creation and distribution, has this week revealed plans to bring its expansive catalogue of musical content to Virgin Media’s new unlimited download service – but with one notable delivery caveat.