Do you need to defragment ReadyBoost USB drives?

Chris Marcoe June 5, 2013

I have a 16GB flash drive that I have set up as ReadyBoost on my computer. When I defrag my HDDs, should I defrag my Readyboost drive also?

  1. null
    June 24, 2013 at 11:48 pm

    You should NEVER defrag a flash drive, or an SSD. When you defrag a SSD/Flash Drive, it will end up causing tons of small write accesses, which will reduce its lifespan .

  2. ANKUR T
    June 5, 2013 at 2:40 pm


  3. Oron Joffe
    June 5, 2013 at 10:09 am

    Defragging is only useful on mechanical devices. In a hard disc the read head needs to move to the correct track and then wait for the relevant part of the disc to go under the read head. This takes time, and having the files organised to minimise it can make a big difference. In flash devices, access to any storage block is equally fast regardless of where the sectors are (i.e. sequential or at opposite "ends" of the drive). Therefore, DalSan is right - the only impact of "defragging" a flash drive would be to reduce its life expectancy a little.

  4. ha14
    June 5, 2013 at 8:27 am

    well if it is really slow then you can defrag, defraging usb can use some of the write cycles so will reduce its life. Ready boost technology is write process faster write better readyboost.

  5. techguyknows
    June 5, 2013 at 6:37 am

    It is best not to defragment any drives or disks. It will just reduce the lifespan of that disk or drive. Even for Readyboost USB drives, the effect of defragmenting it, should not be very significant.

    • Chris Marcoe
      June 5, 2013 at 5:27 pm

      What about an HDD that is at 10% fragmented?

  6. Alan Wade
    June 5, 2013 at 6:29 am

    I wouldnt defrag any drive unless it was absolutely necessary, and never a flash or a SSD drive.

    • Chris Marcoe
      June 5, 2013 at 5:26 pm

      Even mechanical HDDs?

  7. Bruce Epper
    June 5, 2013 at 2:21 am

    A ReadyBoost drive is a flash memory device and you NEVER want to defrag it. There is absolutely no performance benefit to it and it will only reduce the overall lifespan of the device.

  8. DalSan M
    June 5, 2013 at 2:15 am

    Defragmenting a flash drive would only reduce the life span of the disk. The performance gain (if any) would not be worth it. I know that there are defraggers that are "designed" for flash drives and cards, but I wouldn't trust them.

Ads by Google