How to clean your PC a list of 7 PC resolutions - those nagging PC activities you should engage in more often but don't - to help you and your computer start off the new year on the right foot. From defragging and backing up your hard drive to organizing your documents, this is a roundup of best practices and automation tools straight from the Lifehacker vault. in Technology > PC > Windows XPwith backupbestpracticeclearuplifehackerpcpcmaintenancetipswindowsxp