Final answer:
You should never defragment an SSD because it can reduce the lifespan of the drive by causing unnecessary write operations. SSDs use flash memory and do not require defragmentation for performance improvements.
Step-by-step explanation:
Of the options provided, you should never defragment an SSD (Solid State Drive). Unlike traditional hard disk drives (HDDs), SSDs store data on flash memory, which means there are no moving parts and access to the data is not influenced by the physical location of the data on the drive. Defragmenting an SSD is not only unnecessary but also can reduce the lifespan of the drive due to the additional write operations it causes. Automatic backup processes are beneficial to prevent data loss, changing the mean time before failure setting is not typically an end-user operation, and storing high-performance data on the SSD is actually recommended due to the drive's fast access times.