Defraggler

When Defraggler reads or writes a file it uses the exact same techniques that Windows uses. Using Defraggler is just as safe for your files as using Windows. At a glance you can see how fragmented your hard drive is. Defragglers drive map shows you blocks that are empty not fragmented or needing defragmentation. Give your hard drive a quick touch-up with Quick Defrag Organizes empty disk space to further prevent fragmentation Defragment while you sleep - and wake up with a faster PC. Set Defraggler to run daily weekly or monthly Full Windows OS and Multi-lingual support Boot time defrag of system files Supports 37 major languages Defraggler is made by Piriform, the company that also brought you CCleaner and Recuva, so is completely free