kazaa

If you are unable to remove kazaa via the add / remove programs, you can also do it with spybot. If you have been using file sharing I would definitely download and run spybot. Here is a link.
http://security.kolla.de/index.php?lang=en&page=download
Note: make sure you backup and needed files prior to running any type of spyware removal tool.

 

Backing up data / work files is necessary regardless. Data that is not backed up is data that is not important to you.
There are many ways to backup important files such as copying them to a cdr, zip drive, extra hard drive , tape drive; floppy disks are usually not used for backing up very often since they only contain 1.44 Meg. I use a program called drive image. What it does is make an image file of the selected partitions and copies them to another hard drive. The cheapest is probably using a cdrw; the disks cost less than .25 each when bought in bulk at Costco or Sam’s club. This of course requires you to have a cdrw drive and software to do the copying. An extra HD is also an option; I just checked newegg has a 40 gig Maxtor drive for $78 with free shipping.