Windows 10: 128gb or 256gb flash drive formatted to 32GB on Windows machine

I have read several responses to individuals having issue with Windows formatting their 128gb, 256gb, etc. flash drive to 32gb. Most of them dated back to 2013. After reading through literally 100's of answers, there is only ONE solution that I have found to work, and work perfectly. It's using Microsoft Diskpart in a command line. Follow this link for detailed, step by step guidance to fix your flash drive.


http://geekswithblogs.net/ilich/archive/2013/04/26/recovering-unallocated-space-of-a-usb-flash-drive.aspx


For those that aren't sure how to pull up a command line in Windows, simply press and hold the "Windows" button on your keyboard and then press and release the letter "R". Once you see the Run box open up, simply type cmd and hit enter. A word of note! IF after you type "clean" and you receive an error, don't freak! Simply type clean again and THIS time you should be successful. Good luck.....

:)

 

128gb Flash drive now reads 32gb in Windows 10

After downloading the Windows 10 install to m flash dive, the flash drive now says it is 32gb instead of 128gb.

I have formatted to both FAT and NTFS but no change, using Disk Management It shows a 32gb partition and then another partition with the balance.

I cant expand the partition through Disk Management.

Any ideas how to get this back??

Thanks in advance

***Post moved by the moderator to the appropriate forum category.***

 

128gb Flash drive now reads 32gb in Windows 10

This thread has the solution. Look for the post with the diskpart.exe instructions - it worked for me in Windows 7. (Note, you have to type "select Disk #", not just "select #", otherwise the instructions are spot on.)

http://www.tomshardware.com/answers/id-2013134/128gb-flash-drive-formatting-32gb.html

 

How To Format A Write Protected Flash Memory ?

¿You already tried this one?...

Run CMD


1. diskpart
2. list disk

Then in the 3º step, put the correct number of disk in the list for the usb flash (if it's listed in disk 3, then you'll have to write select disk 3).

2. select disk #
3. clean
4. create partition primary
5. select partition 1
6. active
7. format fs=fat32
8. assign
9. exit

with that commands you will format the flash drive in fat32, if you have a large drive you can select also "format fs=ntfs" in step 7.

good luck!