If you are upgrading to Windows 8 from an older Windows version like Vista or 7 you should not lose any files as Windows has developed the transition to be nice and smooth. If you are clearing off the OS completely and manually installing Windows 8 then it is recommended to have a backup of your files.
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Not really. You can sort of change your OS without reformatting by following these steps.You need to defrag and split your Hard Drive into two partitions, so find a defragging tool that will move windows files to the front of your hard drive.After you have split your Hard Drive into two partitions you need to get a boot loader such as grub or lilo (this will overwrite your windows boot loader so if you ever uninstall the boot loader you will need to fix the windows boot loader).I believe grub comes prepackaged with Linux if you wanted to go that route.Then you just install the new OS on your new partition and you don't lose any information from your old OS.It's not exactly the simplest method and if you just want to get rid of all the viruses on your PC, then just reformat. It will save you a lot of time and hassle and it would be faster just to get all those files back (plus you can store the irreplaceable files on a CD or external hard drive).This method is called dual booting if you wanted to research more.Next AnswerIf you have another compatible operating system on another hard drive, you can replace the existing one and use the operating system on the second driveIf your hardware allows it:You can have two hard drives installed on the same machine and select which to boot.You can boot the computer from a Live CD that has another operating system on it.You can boot from a USB devce with another operating system.
Most operating systems can only be removed by formatting the hard drive, and then installing the operating system that you desire. The drawback to this is that you will lose everything that is on that partition of the hard drive. Example : if you have a computer with Windows Vista but you want to put Windows XP on the computer you have to wipe (format) the hard drive in order to load Windows XP. This means saving all your documents to a CD or another hard drive or another partition. If you want to upgrade to a newer operating system then this can be done without losing your information, but some programs may need to be reloaded. Hope this helps. ----
shakespeare
Yes, if you twerk too hard and you injure yourself (back injury, quads, knees, or fall down and hit your head because you lose your balance from all of the twerking), it will likely be covered by insurance.
Pretty much any form of dance will help you lose weight.