any computer must be present for at least two logical drives («C» and «D»).At first it must have an operating system («C: \ Windows»), and the second should be placed personal data.

It's simple.If all important data stored on the disk «D», then the failure of the operating system (for example, after the virus activity) drive «C» can be deleted, re-create and install a new operating system.A disk «D» with all the data need not even touch, all data remains in place.

If you have only one disc «C», when infecting a computer will have to connect the drive to another computer, clean the virus, to keep all the necessary data to removable media, and only then install the new operating system.

Separately, I note that one hard drive can be divided into any number of logical, so do not need t
o acquire further - division drives completely free and takes only 10-15 seconds.
How to store data
data stored on the second disk should have a clear logical structure.Simply put, it is necessary to divide the data into categories (folders).For example, a standard data structure would look like this: "Programs", "Downloads", "Work", "Learning", "Private".

Each folder can be separated for a few more folders.For example, "Private" can be divided into "Music", "Photo", "Video", etc.Folder "Photo" can be divided by year (2009, 2010, 2011, etc.).And in the "2009", you can create a separate folder for each event, such as "Summer Holidays" or "New Corporate department."

As you can see, it turns out deep, but clear and simple orientation data structure.
How to store data
Of course, it would be unwise to pass each time through the whole hierarchy of folders for files that you need to run often.For this purpose there are labels.Add a shortcut on the desktop the most important folders and you'll have quick access to all your important files from the desktop.And the files are not stored on the desktop and on the disk «D», as it should be.

It is advisable not to store any data on the desktop as the desktop - this is also the folder on the disc «C» («C: \ Users \ CUSTOMERACCOUNT \ Desktop» for Windows 7 or «C: \ Documents and settings \Users \ CUSTOMERACCOUNT \ Desktop »for Windows XP).
How to store data