That said, a drive can operate below its potential due to inefficiencies like fragmentation (on HDDs), corrupt file system metadata, or a nearly full disk. Legitimate system utilities, such as the built-in Disk Defragmenter on Windows, TRIM optimization for SSDs, or trusted tools like CrystalDiskInfo, do not "increase" drive speed. Instead, they restore it to its baseline performance by cleaning up logical errors. For example, defragmentation re-organizes scattered file fragments on an HDD so the head can read them sequentially, reducing access time. However, if a software product markets itself as "Ultimate Drive Increaser" or "Speed Booster Pro," it often conflates standard maintenance with impossible performance gains. These programs typically display impressive but fabricated "before and after" speed graphs, tricking users into believing a 5% cleanup is a 200% performance jump.