I created a Windows 8.1 USB installation drive with my Kingston 64GB USB drive. It worked great and did everything for me. So I plan to reformat it, but the 64GB flash drive only showing 32GB. I can see the details about my Kingston 64GB USB drive, there has two parts on it, one is the 32GB active partition, and another is a 27.6GB unallocated space. I tried to delete the active partition and the delete option is grayed out in Disk Management. After formatting, all I get is 32GB not 64GB. I want to format the 64GB USB drive to full capacity. Any help would be appreciated, Thanks.
The Cause to 64GB USB/SD card Only Showing 32GB Issue
The USB stick will show wrong capacity when you create a Windows Installation drive or a recovery drive. For example, the 64GB flash drive only shows 32GB. The result probably due to the file system is changed to FAT32 not NTFS. As you know, the Disk Management can format an external hard drive to FAT32 up to 32GB, that’s why you can’t get a partition larger than 32GB.
Generally, the hard drive is formatted with NTFS format. NTFS is the abbreviation of New Technology File System developed by Microsoft, and makes up for the limitation of FAT32 file system. So the best way to repair the pen drive showing less space than actual is to convert FAT32 to NTFS and restore USB to full capacity.
How to Fix The 64GB Only Showing 32GB Problem?
The best NTFS to FAT32 converter is AOMEI Partition Assistant Professional, which is a powerful disk partitioning software in popular Windows operating system, like Windows 7, 8, 10, etc. The software allows you to convert FAT32 to NTFS without losing data to fix the 64GB flash drive only showing 32GB or other USB/SD card/HDD/SSD showing less space problems. Here it is:
Connect the 64GB USB flash drive/SD card/memory stick to your computer. Download AOMEI Partition Assistant Professional, install and launch it.
1. Right click the 64GB USB drive/SD card/memory stick and choose Advanced > Convert to NTFS.
2. Click OK.
3. Select Apply to convert FAT32 to NTFS without losing data.
4. Pitch on the 64GB USB flash drive/SD card/memory stick, select Resize Partition.
5. Drag the double arrow to rightwards to extend the partition to its actual size.
6. Click Apply at the tool bar to fix 64GB flash drive only showing 32GB.
After a while, you will get a whole 64GB partition on USB flash drive/SD card/memory stick to fully use. In other words, you will restore USB flash disk back to full capacity. Besides, another way to restore USB to full capacity is deleting the 32GB partition and creating a new 64GB NTFS partition. Moreover, AOMEI Partition Assistant Professional has the ability to remove write protection for USB drive/SD card/hard disk, create second partition on SD card, create bootable media, convert NTFS to FAT32 for USB drive/SD card, allocate free space from one partition to another, convert primary partition to logical, and many more. AOMEI Partition Assistant Server is available for server users with all the advanced functions.