Never keep my personal files and folders (such as My Documents, My Music, My Pictures, etc) in their default locations.If something happens and you need to format the C: drive that means all your documents, music, pictures, will be lost. To avoid such problems you can always move them and store everything on a separate partition. This way, you can format the C: drive and reinstall the operating system how many times you need without risking your data.
I never knew any of this and will try it myself I have had to reformat my computer and lost all my information. I was not a happy camper. Now that I know this I will try it then I wont have to worry about losing my data ever again, that would be nice.