hello USB drive (JetFlash 512MB) stopped showing in my computer..It was fine a day back..Virus in Os is prob??

Answer 1

Your op sys info would help greatly. If you have windows 2000 or above it should see it. If you are using anything earlier reinstall the drivers. If you dont have the disk go to the flashdrive manufacturers website and download it. You mite also try to uninstall any sign of it in device manager and reboot....

Answer 2

Solid-state disk life expectancy
Solid-state disks flash media has a limited number of write/erase cycles. The life of the device depends on the number of erase cycles guaranteed by the flash vendor, and the frequency with which each specific group of sectors is updated. Because of this limitation, many engineers are concerned about using a solid-state flash disk drive in write-intensive applications.

With the proper flash management software, flash life expectancy can be extended to the point where the write/erase cycle limit is of no consequence, even in the most write-intensive applications. As an added benefit, flash management software handles issues such as bit-flips and bad blocks, inherent in NAND flash media. With the appropriate error detection and correction code (EDC/ECC) and bad-block mapping algorithms, flash management software can guarantee data reliability that meets even the strict requirements of mission-critical applications.

The key to extending flash lifespan is to avoid using the same memory cells repeatedly. Simple flash file algorithms map a logical sector to a fixed physical location. This method quickly causes the flash to wear out when an application updates the same sectors over and over again, a very common usage scenario.

Advanced algorithms for flash management map a logical sector to a physical location, changing the mapping over time so that different sectors are used. This method, called wear-leveling, ensures that all write and erase cycles are evenly spread across the entire flash array to extend flash life expectancy.

Wear-leveling also delays the onset of certain failure mechanisms in the flash that can cause entire erase units to become inoperable. With wear-leveling, the erase cycle limit of the flash is increased well beyond the minimum specified by flash vendors such as Toshiba, Samsung, and Hynix: ranging from 100,000 to 300,000 raw flash write/erase cycles, depending on the operating temperature condition and the maturity of the silicon process. msystems' TrueFFS flash file system management guarantees more than 5 M write/erase cycles and ensures the highest reliability by mapping out bad blocks, and implementing both hardware- and software-based EDC/ECC.

Answer 3

Check the same USB drive is working in a different computer.

Answer 4

try unplugging it, rebooting and pluggin it back up, if the computer doesn't see it, it is oprobably the flash drive, try it ina different computer