How often should I defragment my hard drive to keep it running at an optimal speed?

Ideally, you should defragment your hard drive every month or two to keep it running at optimal speed. However, the exact frequency will depend on how much you use your computer and what type of files you work with. Using an automated tool like Windows Disk Defragmenter can help keep your hard drive running optimally without needing to worry about manually scheduling defragmentation.