Image via WikipediaUbuntu is totally free and i got a CD officially which is free of cost.It provides some options such as you can make a tour through the CD and can have an experience of the linux OS.
One of its best features is that it allows you to install the OS inside windows just as you install one of your application softwares.Being user friendly,I did the same but on booting through UBUNTU option,i got the following error:
"Installer encountered an unrecoverable error and will now reboot"
I was pretty sad due to it,but after referring various sources i got to know that sometimes after using your HDD for a long time,some bad clustors gets developed on your HDD. Ubuntu uses 'ext4' and 'swap' file systems unlike your normal Windows 'NTFS'.Sometimes this also creates problems.
So,i deleted one of my drive to create free space and after booting through the CD selected 'Use continous available free space for installation' option and installed ubuntu successfully on this free space.
Hope this may help you someday,sometime.....:)
Always Njoy!!!
