02-05-2015 02:14 PM
So I've got this 16gb Cruzer Switch drive that I used to back up all my pictures from my computer before doing a format and restore It worked before I did the restore on the computer but after I reloaded the computer and tried to put the pictures back on the computer the flash drive would keep giving the windows error - "You need to format drive in disk f before you can use it." I've tried all the data tools out there and all of them only see 64mb - RAW system and can't read anything file wise on the drive. I'ld rather not reformat the drive as I would really like to get those pictures back. Most forums direct me to Textdisk as an option to fix the drive but when I run the analyse it doesn't see any partions and gives a - doesn't have endmark 0xAA55 - error. The step by step guides say the next step is to try changing the sector size and then run the analyse again, but I'm not sure what to set the Cylinders Headers and Sectors to. Most of the examples out there are for HDD's or flash drive of different sizes. Anyone have any ideas as to what the CHS values should be, or another method of fixing this drive from everything I've read it should be possible to fix this drive.
02-10-2015 05:59 AM
in that case where the usb drive is detected with 64MB and in RAW format there is nothing you can do and the drive is defective. You can replace it with the place of purchase or contact sandisk direct to ask for a replacement.
#Missing the keyboard? Press F1 for help#
02-13-2015 11:19 AM
Try to format this with NTFS. I think that would just fix the issue for you. Or might as well to isolate the issue, try another PC if it behaves the same.
02-16-2015 08:29 AM
Try this, my last ditch attempt - You will be formatting the drive though. My personal solution and steps to try is :
2) When the command prompt opens, type "Diskpart", then press enter
3) A list of drives detected by your computer appears. Type "Select Disk x", where x refers to the USB Drive (should be 14g size). Press enter.
4) command prompt will inform that the disk x is selected. Type "clean" and press enter. Drive will be ERASED.
5) Once complete sucessfully, CLOSE the command prompt window.
If this works, your chances of getting the drive back is slightly higher than 0 (maybe 5%? I dunno, haha)
6) Press Win+R on your keyboard, and type "diskmgmt.msc", press enter.
7) You will see a 16GB unallocated space for the thumbdrive disk, if the previous steps were succesful
8) Right click on the unallocated space, select NEW SIMPLE VOLUME
9) Enter the MAXIMUM size of allocated space allowed, then NEXT. Assign a drive letter etc, may appear. If so select a drive letter than isn't used by another drive. Then a summary of works appears, Select next, and let disk management format the disk.
10) If succesful, the unallocated space becomes blue, meaning allocated.
11) Your drive shows up in windows as blank with 14-16GB. WAIT! DO NOT USE THE DRIVE YET.
If this works, your chance of getting the drive back is very good, and you have 1 shot at recovering the files!
If there are errors reading the disk (e.g. CRC fail or cannot read etc, i'm sorry...i have no other solutions than an RMA to sandisk)
12) Cross fingers and say your prayers, hope your other methods you tried did not damage your files too much!
13) Download RECUVA zip file from this link to your desktop: https://www.piriform.com/recuva/builds
14) Extract the zip file, and run Recuva64 or Recuva.exe
15) A recuva wizard appears. click cancel
16) The main recuva window appears. Select the newly formatted usb drive in the drop down box, then click options.
17) Under actions tab, check the tick boxes for "Enable Deep Scan" and "Scan for non-deleted files". Press okay
18) Now, press scan in recuva. Let it do it's work! May take 30 mins to 2 hours, depending on drive.
19) All recoverable files will be listed. Select ALL by ticking the checkbox at the beggining of the list, and press the 'recover' button.
20) IMPORTANT: WHen the prompt asks where to save recovered files, save them in any drive EXCEPT the usb drive! Otherwise you cannot recover the files! Your desktop --> Create new folder' would be the best choice
21) press okay, then let recuva recover all the files.
22) Once done, you can close recuva and examine the recovered files. I hope you can recover most of your files. Good luck!
23) Send the drive for RMA. Maybe the drive has reached end of life and is becoming corrupted.
I wish you best of luck in getting the files back and getting the RMA. I wasn't so lucky when this happened to my Sandisk 32GB Ultra Micro SD Card (I lost all my files, no backup!). That incident alone made me lose confidence in sandisk micro-sd cards imo, and i had no receipt to change them, so they are stuck with me. Now using another brand for my micro-sd cards
02-25-2016 10:43 PM - edited 02-25-2016 10:44 PM
Let me share to you what I have experienced and the solution.
I have the same 16gb and I accidentally nuke it. When I plug it in on my other laptop it shows 64mb and I am not able to reformat. So here's what I did.
1. Usb must be plug in.
2. I downloaded EaseUS data recovery and run it.
3. Select the unallocated data storage.
4. once done no need to hit on recover or anything.
5. close EaseUS data recovery
6. unplug/replug the USB
7. goto disk management on your windows
8. promt will show up.
8. now you should see the 14gb unallocated data
9. On the prompt it will ask you to format the unallocated space. no changes needed just hit on next and proceed with it.
10. Done. USB should be fix
05-06-2016 10:04 AM
12-28-2016 10:19 PM
I had the same issue. My 16GB Flash Drive was only showing 64MB as its size and said it was in RAW format. I was having a complete nightmare with it. I tried everything trying to fix it then I came accross this HP USB Disk Storage Format Tool
If the process fails close the program unplug the flash drive then plug it back in and repeat the process till it formats.
(I had to do this a couple of times). Once its formated successfuly eject the flash drive and then plug it back in again and
you should now see the true size. My Flash drive now shows it to be 14.91GB and its working perfectly.
12-29-2016 06:49 AM - edited 12-29-2016 06:54 AM
A rather strange site. How does one know if the HP link above downloads the HP utility or a malware app? I would feel safer getting the HP utility from here:
Important files = Backed up files
03-19-2017 02:07 AM
I had the same problem. I freaked out and was about to format it.DON'T Format the drive.
Then I safely ejected the drive. The drive light was still flashing rapidly.
I just unplugged it and plugged it back in and it worked. All my data was intact.
I think this is a warning sigh to upgrade your flashdrive.