#Windows format windows 10 usb tool how to

It is now time to select the formatting style and the AUS. Next, ensure that the “Assign the following drive letter” radio button is selected, then select a drive letter from the drop-down menu in front of it. Leave it at its default value (unless to want to create more partitions) and click Next. On the next page, you will be asked to confirm the size of the partition. You will now encounter a new volume wizard. Right-click on the empty white space on the drive and click New Simple Volume from the context menu. From there, you will likely find the USB drive displayed as “Unallocated.” In that case, open the Disk Manager by typing in diskmgmt.msc in Run. This is usually the case with brand new USB drives. When a USB drive is missing from the explorer, it usually means that it has not been formatted to any file system at all. This method can be especially resourceful if you cannot initially find your USB drive through File Explorer. This tool is specifically for managing any storage space in or connected to your device. Windows 10 comes with a built-in tool known as the Disk Manager. You will now find an entirely formatted and empty USB drive. Once done, click OK on the dialog box indicating that the formatting process has been completed. Now enter a name for your USB under Volume Label and click Start to begin the formatting process. We suggest that you leave the AUS to its default value.

Select the file system from the drop-down menu under File System, and then select your desired AUS from the drop-down menu under Allocation unit size. Plug your USB in and right-click on it from the Explorer. We suggest that you backup any critical data on the USB drive before proceeding as anything on there will be erased indefinitely. The quickest and easiest way to format a drive is from File Explorer.

#Windows format windows 10 usb tool how to

How to format USB drives in Windows 10 Format USB drive from File Explorer The default AUS recommended by Microsoft is 4096 bytes for standard users. Therefore, it is important that you select the correct AUS.

Fragmentation causes the storage space to perform relatively slow as the data is now scattered all across the storage space, hence consuming time to get and compile it. These blocks can be together or can be further apart, known as fragmentation. In contrast, if you save a 3KB file in storage space with an AUS of 2KB, then it will need to be stored in separate blocks. Nevertheless, the remaining 1KB will be wasted. If you have a 3KB file stored in a storage space having 4KB AUS, the 3KB file will be stored in a single block. This can be understood better with the aid of an example. However, it does affect how much storage space can potentially be wasted. However, the overall space of the storage will be the same, regardless of the AUS. While formatting a storage drive, apart from the file system type, you are also expected to define an AUS.ĪUS is the size of each block within a storage space. Allocation Unit Size (AUS)īefore we dig into the process of formatting USB drives, there is one more thing we ought to cover: the Allocation Unit Size (AUS). Go here to learn more about the differences between NTFS, exFAT, and FAT32 file systems. When trying to format a USB drive on a Windows 10 device, you have to choose from the file system you want to format it in. Windows currently supports 3 types of formatting:Įach of these file systems have their own attributes, advantages, and disadvantages. Therefore, a USB drive, being a storage device, requires a file formatting system before it can be used. It is also a mechanism of how the storage device reads and writes the data. This is because the file system defines the attributes, characteristics, and rules which the device will have after it has been formatted. Closing words Why USB drives require formattingĮvery storage device needs a file formatting system.Format USB without drive letter using Command Prompt.Format USB using drive letter using Command Prompt.