SanDisk 64GB Extreme


I bought a 64 GB version, but when I plugged it Windows showed only a partition of 32 GB. I then looked in the Disk Manager and it says I have a partition unalocated and 27 GB 32 GB. The problem is, that I can not remove or extend partition of 32 GB to use the full size and cannot create a second partition instead of unalocated. I tried gparted too, but even there.

Any idea?


Maybe this will help.   http://geekswithblogs.NET/Ilich/archive/2013/04/26/recovering-unallocated-space-of-a-USB-flash-drive...

Tags: SanDisk Products

Similar Questions

  • MB 12 "retina: disconnects with a disc random external usb3.1typeC" sandisk 900 extreme 960GB.


    I recently bought an external drive of 960GB "sandisk extreme 900" with connection usb3.1typC. the drive has no other ports.

    It is directly connected to my macbook 12 "retina with the port of usb3.1typeC, and I lived at random disconnects, without physically moving the macbook or the external drive. disconnects occur only when a copy is going, I copy 100 or 200 GB.

    the plug is correctly connected and does nor appear in the finder or in the application of harddisctool apple - after disconnecting.

    When I reboot 3 times, it pops up with the error "drive my being damaged, you can read but not write, format this drive."

    When I test the drive on my imac 27 ", I did not discconnects. but then I use another cable: "usb3.1typeC to usb3.0.

    -is this model "sandisk extreme 900" compatible with the MB 12 "retina?

    -is there enough power by the mb 12 "retina? for example when he is left of 30% of its power, I unplug the cable and then plug the external sandisk in the Mo - I wonder if the external drive can get enough power?

    Thank you!


    SanDisk lists this product '900 extreme' it is tested, verified and compatible with the retina 12 '' macbook from apple on their Web site.

    "disconnect it as happen only when I copy files, I think that its not getting enough power to the mb12", first of all, what power is low (10%).

    I can't use the power cord of the mb12"because there is only one port.

    "the only thing that is strange: when the power of the mb12" is low (10%) and the external drive is to copy the files, it should not disconnect the drive.

    the display of the power of 10% should quickly fall to 0.

  • CF adapter for x 61 (Sandisk Extreme III 4 GB)

    I would like to install an adapter compact flash on my x 61 for uploading photos.  I have had no success to find any that will work with my 4 GB Sandisk Compact Extreme III Flash readers.

    I have a functional USB adapter, but want a solution that is compact and most effective for purposes of travel - something like a card PCMCIA (which can be inserted internally).

    In fact, I was unable to determine what the actual type of the location PCMCIA look-a-like on the left side of my x 61.

    I will be grateful if someone is able to help with answers to any of these questions.

    OK, I have a solution (or sorts) - a new x 61.  With the new LT (LT2), when I insert the card cardbus; Windows prompted me for the drivers, I've provided and now Windows Explorer shows the CF card as drive "E:\. "and I can browse the folders and files.  Everything is good...

    I still don't know what the problem with the first LT, I compared the settings of the BIOS of each other, which seems irrelevant.

    It begins to seems to be a problem of warranty with LT1.

  • In XP, SP2, Windows Embedded Standard 2009, system to see the CF 8 GB Extreme like disk sets.

    Hi all

    I'll put up an industrial PC with reader CF card on the motherboard. The system come with a card CF 8 GB, XP SP2, Windows Embedded Standard 2009 installed. I want to keep this card as the master of the copy, so I buy a SanDisk CF Extreme 8 GB in replacement card. I managed to copy the image to the new CF card and make it bootable. However when XP is running, he still see the CF card as a removable drive C:\. Where as with the original card CF, the operating system see a fixed drive C:\. It's a way I can make the SanDisk CF card as a fixed disk, as I have a problem with the installation of the software.

    Unfortunately no you can go see it as fixed disk. SanDisk sells only fixed disk via the OEM channel cards. you will need to contact one of their OEM distributors and buy a card of fixed disk mode.

  • 6 d needs a fast enough SD card for RAW to 4.5 fps

    After reading a few comments on the problems with the (secondary) SD card controller into the famous camera of 5 d MarkIII, I decided to test my new unit 6 d.

    Speed tested with the same composition and lighting (poor tungsten), same frame parameters: exposure 1/200 @ f/1.6 on iso 800, object of shooting was my window air conditioner mounted (LOL, I know ha ha!):

    Since I have already spent some time on the preparation of the information for my part, I thought I'd share here

    Size of the files with a band bandwidth approximate writing to the camera s max 4.5 FPS (continued in shooting mode):
    GROSS 20M 5472 x 3648 - size 22 814 KB file ~ 100.2 MB/s
    mRAW 11M 4104 x 2736 - size 16 581 KB of the file ~ 72.9 MB/s
    sRAW 5.0 M 2736 x 1824 - size 11 228 KB of the file ~ 49.3 Mbps
    L high 20 M 5472 x 3648 - size 5 303 KB file ~ 23.3 MB/s
    L 20M 5472 x 3648 - average file size 2 488 kb ~ 10.9 Mbps
    High M 8.9 M 3648 x 2432 - size 2 463 KB file ~ 10.8 MB/s
    Average M 8.9 M 3648 x 2432 - size 1 090 KB of the file ~ 4.8 MB/s
    S1 high size 1 470 KB of the file 5.0 2736 x 1824 - ~ 6.4 MB/s
    Average S1 5.0 2736 x 1824 - 643 KB file size ~ 2.8 MB/s
    S2 2.5 M 1920 x 1280 - the file size of 766 KB ~ 3.4 Mbps
    S3 0.3 M 720 x 480 - 155 KB file size ~ 0.7 MB/s
    * about write bandwidth calculated with the formula (FILE_SIZE_KB * 4.5) / 1024, results in rounded Mbps

    observation, it seems that file sizes adjustable by all about 50% discount for JPG (high quality) or sRAW at certain composition & light scenes.

    Maximum size of the files that I saw was 27 800 KB for RAW (calling to more than 122 MB/s in view write speed 4.5 FPS burst) and nearly 8 MB for large JPG in high quality (equivalent of 35.1 MB/s burst mode). Former was spend with Sandisk have SD (afte 13 executives bus), it went through without a problem for about 30 seconds (more than 130 frames).

    Phew... essential is that I was able to shoot continuously all sorts of images JPG infinitely (tested up to 30 seconds) with my SD Sandisk Extreme 45 Mbps card... but it's much too slow for any type of images RAW - literally after 13-16 frames, you will see a shutter speed and 'BUSY' message will fall by 0.9 FPS until you release the shutter button and let the unit registered the buffer to the map then you can repeat.

    I thought actually buy the fastest on the market SD card, I could find, but gives up after that I came back to find only Sandisk SD Extreme Pro cards rated up to 90 MB/s write speed, they are no doubt good, maybe to mRAW, but not yet enough for RAW... hoping the fastest SD cards get put to the point some time in the future I like really pure RAW... mode and sometimes want to make an ofshots of the series executives 13 formorethan

    Does keep me in shooting mode every day for more than 13 images of each? No, not at all, but could someone and if you do then your only real option is 5DMIII (with similar full frame sensor) camera and a blazing fast CF card that could support infinite shots up to the capacity of the card.

    Good news is that the SD cards work great (as advertised) in 6 d camera!

    It will be useful.

    The 6 d supports the UHS-1 cards.  The UHS-1 standard allows a theoretical bus of 312 MB/sec speed.  I say 'theoretical', because the bus have raised (usually a 'big' file transfer faster than many 'small' folders) but also and above all... no one does in fact card technology SD which can transfer data as fast.  So, really, it is the physical speed of the card which becomes the barrier and not the speed of the bus.

    I've seen maps UHS-1 with speeds estimated up to about 100 MB/s (this is a rounded value).

    The 5 d III is different... it's CF slot is quick (slots for CF cards are usually always fast) but the SD card on the 5 d III is _not_ a location of bus UHS-1.  So, it doesn't have the fastest transfer speed.  If you _need_ this on a 5 d III faster transfer speed then you would want to make sure that you have configured to write to the CF card and buy a suitable size CF card that can follow.

    So far, I think that only 6 D and the new 70 D SD UHS-1 slots.

    If you have a 6 d or 70 d and you want speed then you want to make sure that your SD cards are cards UHS-1.  The symbol is a letter "U" with a "1" inside the "U".

  • HP 17.3 E0067cl UEFI BIOS. boot order fails.

    total of history: end-to-end.

    subject, the flash player. 23 to 32GB (mine is 32 Sandisk USB3, extreme, written 100 MB/s.

    will not work with rebecca, or (what we call it now)

    It won't work, create backup USB flash, "" create the recovery disk ".

    It just shows the "daisy" spinning throughout the day.  on a brand new laptop HP, 20 July 2014, new in box.

    I just ran sfc /scan now and spend.

    my best guess it that windows update to 8.0 (100) killed this "feature".

    or my 8.1 updated. (toss the coin)

    I ordered the new installation of HP for $18 disc...

    so bad to close this topic, with "operator error", never update then try running to build your own, backup media.



    the second problem is that the bios does not allow. My next update.

    a new SSD.

    I got it to work.  but the BIOS does not see the two disks. ! (in bios boot order) UEFI.

    I solved this problem by removing the 2 left 1, the old HARD disk.

    now the SSDS works like the lighting and the BIOS, can be ignored.

    I used Acronis to make the all the steps above tib files and evolutions'm so good... and made and a huge external drive.

    problem solved.


    This has something to do with what we were talking about earlier on recovery and flash player?

  • Experiences of T500 and card reader


    I think around to replace my HDD with a SSD Intel so I also read a lot about this different storage technology. Later, I came to the result of attempting moving $TEMP, $BROWSERCACHE and $PAGEFILE for a cheaper Flash. Why not use the card reader integrated?

    Someone with experience in the execution of the build in the card reader (RICOH)? I can't find any Tech specs for this device and so I have no by an expensive sandisk sdhc extreme iii 30 MB/s or anything else where there is a slower card reader built in.

    I woulb gladly about some results "benchmark" of your sd, sdhc, mmc cards in the reader build-in.

    Thanks, Ronny

    I tried a SATA CF adapter in the UltraBay slot. My Lenovo is not recognized-, but it works with a USB adapter to SATA (at low speed).

    In my view, card reader is not a solution for my task. It is very possible to be too slow for the paging - now I'm going to see how long lives the SSD.

  • New adjustment layers - create the clipping mask?

    This just started happening.  I use Windows Home Premium 64-bit and 64-bit Photoshop CS5 (not extended).  My system specs are listed below.

    I've been editing a series of photos when the levels adjustment layer dialog box started to behave abnormally.  Finally, I realized that, in the "New layer" dialog, the "Use previous layer to create clipping mask" is checked.  When I click on button othe levels in the "Adjustments" pane the new adjustment layer is also indented as if I had used the Ctrl + Alt + G key combination.

    I restarted Photoshop and got the same behavior, then restarted Windows and always get the same behavior.  I am sure I have inadvertently enabled something, but can not find the place where to retrieve the original bahavior.  Does anyone know where to turn?


    P7P55D Deluxe LGA 1156 Intel P55
    Intel Core i7 - 870 Lynnfield BX80605I7870 hearts LGA 1156 95W 2.93GHz
    CORSAIR XMS3 8 GB (4 x 2 GB) 240 - Pin DDR3 SDRAM DDR3 1333 (PC3 10666) desktop memory model CMX8GX3M4A1333C9
    Drive0 (OS) OCZ Agility 2 OCZSSD3-2AGT90G 3.5 "90GB SATA II MLC SSD
    Reader1 (data) Hitachi 0F10452 2.0 TB SATA 3.0 Gb/s 7200 RPM 32 MB
    Lecteur2 (Installed Apps, downloaded apps, Web site, pagefile) OCZ Agility 2 OCZSSD3-2AGT90G 90 GB 3.5 "SATA II MLC SSD
    Processor heat sink thermal ARCTIC COOLING Freezer 7 Pro rev 2 92 mm CPU Cooler
    OS Microsoft Windows 7 Home Premium 64-bit
    Mid-turn case Cooler Master RC-531-SSN-1 Centurion 531
    Corsair CMPSU-750TX 750W PSU
    GPU ZOTAC ZT-98GES3M-FSL GeForce 9800 GT 512 MB 256 - bit GDDR3
    NEC LCD2190 UXi "twist" tech LCD monitor.
    WD My Book 3.0 external hard drive 2 TB USB 3.0
    card 1394b Akumen / NitroAV NAVPCIEFW800 PCIe 4 ports Firewire 800
    CF SanDisk SDDRX4-CF Extreme FireWire 800 FireWire drive
    Memory CF card CF 2 GB SanDisk SDCFX42048901 Extreme IV
    Wacom Intuos 3 graphics tablet
    Mouse Logitech Marble Mouse USB Optical Trackball PS2/USB

    With no layer selected setting, go to the menu in the settings panel and deselect the Clip option to layer

  • SanDisk Extreme USB Flash Drive and SMART failure

    I just got 3 64 GB SanDisk Extreme USB Flash Drives and all three show SMART failures to reassign bad sectors. I struggle to believe that all three could be bad on first use. I use a program on a Mac (SoftRAID(4)) to certify all drives prior to use, including the SD cards and USB keys. I've never seen a failure so far.

    Readers see the successful certification but present a SMART failure.

    What is a disk problem or a SMART question or what?

    Thank you


    I agree that it is unlikely to have failed on the first use. Most likely, it is a problem with the SMART attributes. IIRC sandisk can't CHIP for this product so it formats without error, and data can be copied onto the discs with success, I wouldn't worry too much on this subject.

  • HELP the HELL Sandisk 32 GB Extreme 30 MB/s slow test?

    I bought do not understand that there are a lot of scammers out there. BobobUk a seller on eBay sold me one card 32 GB Extreme which is rated at class 10 and 30 Mbps.

    Using my portable player and H2Testw, recommended here, I found:

    The write speed is 6.95 MB/s while the speed of reading is 3.06 MB/s.

    It's in my portable player tested. The speed may be wrong or a sign of a fake card? Or is it my drive on the laptop?

    What it should be in terms of speed? I use my SD.MS/Pro/MMC/XD player on my laptop, its a so so old HP Pavilion dv9000, on Vista.

    What should I do?


    30424 write took 1 h 12

    Audit 30424 took 2 hours and 45

    Test completed without error.

    You can now remove the *.h2w of test files or check out them again.
    Write speed: 6.95 Mbps
    Playback speed: 3.06 Mbps
    H2testw v1.4

    Thank you very much.


    assuming that the card is real, it is likely that the drive of the laptop causing the transfer speed slow. most laptop manufacturers use the slower cheaper drive possible. You can contact technical support sandisk to confirm if the card is authentic and if it is I would recommend to get a player of USB higher speed like the one below.

  • Extreme pro sandisk ssd on SCSI: how to check the status?


    I have a SSD Pro Extreme Sandisk 240 GB on my system.

    I've seen it can be detected and status verified by the dashboard of sandisk.

    A big company like Sandisk, which looks very bad for me, because it's a very long time (YEARS) the dashboard does not support scsi controller detection and management.

    So, please let me know how to check and manage my SSD Sansidk in absence of decision-making in charge of your dashboard.

    I don't want to find problems after the harshness.

    Thank you


    Hi albedo.

    Unfortunately, these drives are designed for the SATA interface and some orders may not go through interaction SCSI-SATA, dashboard controls may be among them.

    In this case, you can check your statues in car with software or third-party tools and share the result with us if you have any concerns. Dashboard is an add-on software that comes with the player, but not mandatory to use, and it won't affect your use if you do not dash

  • SanDisk Extreme 64 GB readyboost compatible?

    Hey all.

    I can't find the answer to this question anywhere on the net.

    SanDisk 64 GB Extreme is compatible with readyboost for windows 8.1?

    Thank you!


    as far as I know, you can use any available with Windows ready boost FlashDrive. but I also know that Sandisk did not recommend this use due to the fact that the flash player will not wear in a period very short and may be you will lose data.

    so I suggest you to use the drive as a normal storage device.

  • New SanDisk Extreme 120 GB and the slow performance.


    I recently bought Sandisk Extreme (SDSSDX - 120G - G25) but disappointing the peformance is not good as it is.

    My motherboard: ASUS P9X79 PRO)

    First of all, I connect ssd Sata 6 Gbit/s port to intel and update the firmware to R211. Also I put all the options in the bios for Sata AHCI mode.

    Then I format and run a few tests.

    Here are some benchmarks and other:

    As the screens above, I tested the msahci and iaStorA drivers.

    Also changed cable and switch ports.

    Please any help, I have no idea what is wrong.

    your performance is normal. as ssd use uncompressable data. SSD using sandforce controllers do better with data compressable.

  • SanDisk Extreme 8 GB does not not in UDMA

    I bought a Sandisk card CF Extreme (SDCFX - 008G - X 46, BI100912916B) today and seems that it does not work in UDMA mode. I can read/write it max 9, 5 MB/s in my card reader (and this card reader can read/write 18 MB/sec my Extreme III SDHC card).
    I have a Canon 7 d and it does recognize it as a UDMA card no more. Any suggestions or should I change to a new?
    PS: Sorry for my English

    It's better and more like what you get on a USB drive. to get the full speed of the map, you can use the card adapter Express Pro Extreme.

    copuld you try to return the card, but I'm not sure you'll see different results.

  • SanDisk Extreme USB 3.0 unusable as Windows support install all other key 3.0 USB works


    I've explained the problem that is described in detail in the following thread, please read full for understand what is the problem.


    In short:

    The problem is in the stage of Windows where you select the partition to install it's unpossible click Next:

    An error message appears that says: cannot find any partition or create an install for... but the hard drive is visible and its also possible to create and delete partitions, so the error message is bull * beep *.

    My thougth is that sandisk stick is detected as disk sata hard and is internally by mistake folders as first hard disk, if I get out the stick at the stage where I select the partition, click Refresh, reconnect the key, other refreshment so I can install on the hard disk.

    What is the problem with your extreme poles? Any other key usb 3.0 works well.

    To pull the stick and so on is just a workaround dirty, I bougth the stick because of the speed!

    Greetz X 23


    Nobody talked about windows to go...!

    You didn't read the linked thread right?

    To please you, and then you might think about your answer.

    You will find the most important information on page 3, if you

    don't have the time to read them all.


        dotfusion, on 27 Feb 2013 - 23:21, said:
        I have searched high and low for more more information ob this odd behavior. But all i can find is either not reliable or solutions such as the one tried. No real reason as to why or what is the problem.
        I suspect it has something do to with the way the partition tables are setup on the source media (in this case a san disk usb drive.) I would start there.
        amaltom61, on 01 Mar 2013 - 12:41, said:
        I had the same problem with a 2.0 8 gb drive. I found a fix on the net, Just create about 150 mb or more of unallocated space in the hdd or ssd you are trying to install windows
        Resizing a partition would do the trick but do a full back of the drive just in case
        Stimpy, on 01 Mar 2013 - 17:12, said:
        Windows setup will run a refresh on the USB bus at the point that you are having problems with.
        One way to get around it, is to pull the USB disk out, then put it back in, and go back one step of Windows setup, and try again.  This works in most cases with this error.
        bphlpt, on 01 Mar 2013 - 17:15, said:
        The questions remains.  Why is this happening with this particular brand/size of USB stick while it is not happening with others, and how to prevent this behavior?
        Cheers and Regards
        Stimpy, on 01 Mar 2013 - 18:46, said:
        It's a good question.  I also own the same drive, and have the same issue with it.
        I have a feeling that the controller in the stick is slow at initializing, and is simply not fast enough for Windows Setup.  If you watch the USB stick when Windows is setting up, you can see that it's being initialized, (just before setup asks what drive you want to install Windows on) as my mouse and keyboard also disconnect and reconnect at the same time.
        amaltom61, on 02 Mar 2013 - 13:05, said:
        Stimpy can be correct. One way i found to solve this problem is to create some unallocated space in the drive(150 mb or more). 
         bphlpt, on 04 Mar 2013 - 08:00, said:
        Even though you weren't talking about that, I don't know why it wouldn't work.  I've reformatted them before, Fat32 and NTFS.
        OK, I went looking for references.  Yes you can do it, but it seems it is not as easy to do as I thought, at least for everyone.  Some folks say the standard built-in Windows 7 tools do it automatically, some say they don't.  I still haven't tried it, since I don't have a USB stick available to partition at the moment.  Some references say that that you need to flip the USB removable bit so that Windows will see the stick as a fixed drive before you can partition it.  I also found  two different tutorials or how to partition a USB stick here and here.  So, yes, one way or another it can be done.
        Cheers and Regards
        Stimpy, on 04 Mar 2013 - 16:59, said:
        Yeah, I have looked in to this a while ago. And found that you cannot partition this USB stick. It needs to be seen by the system as a fixed drive, but for whatever reason, Sandisk are not interested in helping their customers out with this, as it is a simple change to the drives firmware, like you described. There is a rumour going round that Sandisk are going to realease an updated firmware that will make this drive compatible with Windows To Go, and turn it into a fixed disk. I think that's unlikely, but you never know!
        Have a look here, it seems Sandisk support simply does not care.

    Greetz X 23

Maybe you are looking for