overprovisioning

Overprovisioning is a technique used to improve the performance and longevity of solid-state drives (SSDs) in Windows systems. By reserving a portion of the SSD's capacity that is not accessible to the operating system, overprovisioning provides spare NAND flash cells for the drive's controller to use for wear leveling, garbage collection, and bad block management. This helps maintain consistent write speeds and extends the drive's lifespan, especially under heavy workloads. Windows users can manually configure overprovisioning by leaving unallocated space on the SSD or using manufacturer tools. The practice is particularly beneficial for reducing write amplification and ensuring the drive operates efficiently over time.