#How to reformat a usb drive on a usb how to

Palcouk, you make it sound so simple, yetВ I have posed this question to an advisor at Which?В Computing, (a UK based consumer advice branch of Which? Magazine), and they have racked their brains over how to do this. two distinct drives), and not as one drive, therefore formatting can only be done to each seperate partition.Д«arneyboy48 Experience Level: Baseline - Please keep it simple! Normal formatting does not seem to work because the operating system apparently sees the flash drive as I see it in Windows Explorer, (i.e.

#How to reformat a usb drive on a usb software

How canВ I exercise my option andВ reformat the flash drive with out having to go buying extra formatting software, (Partition Magic is one such piece of software that has been mentioned to me). I personally see no benefit from having this software nor doВ I really want the FD to be messed up with two partitions - I would rather have just the one partition. The other large partition is the main area where the user keeps their data.

This is mainly for the benefit of careless people like MPs who leave them on the back seat of London taxis for the press to get hold of! On the one partition which is only a few MB in size, there isВ normally some security software which is supplied and loaded by the manufacturer. With a modern flash drive, itвЂ™s unlikely youвЂ™ll notice much difference either way, so itвЂ™s up to you whether you stick to the 4KB standard or pick a smaller allocation unit size.Several USB flash drives thatВ I haveВ are set up with more than one partition by the manufacturer. Splitting up a file into more chunks gives the drive controller more work to do, and makes it more likely that the data will end up fragmented into lots of blocks scattered about your disk, making it slower to access.

However, this can have a negative impact on performance, especially if youвЂ™re using a mechanical disk drive. If you plan to save lots of small files to your disk then reducing the allocation unit size might be a good idea. In practice though, most of the files on your USB drive will probably be many megabytes in size, so the impact of wasting a few kilobytes here and there is negligible. A file thatвЂ™s only 1KB in size will still occupy 4KB of space, while a 5KB file will take up 8KB, and so on. Slicing up disk space in this way isnвЂ™t perfectly efficient. Simply put, this determines the size of the chunks in which storage is allocated for your files: if you choose 4096 bytes (the NTFS default), every file thatвЂ™s saved to that disk will be allocated space in multiples of 4KB. How to format a USB drive: allocation unit sizeДЄs well as choosing a disk format, Windows also invites you to specify an вЂњAllocation unit sizeвЂќ. For historical reasons, Windows wonвЂ™t offer FAT32 as an option if your disk is larger than 32GB, but you can format a disk of any size by opening a Command Prompt and typing format h: /fs:fat32 /q, where h: is the letter of your removable drive and the /q parameter specifies a quick format вЂ“ assuming you donвЂ™t want to wait around for Windows to check each sector of the drive for errors. On a Mac, you can format any disk as FAT32 by simply choosing вЂњMS-DOS (FAT)вЂќ from the dropdown menu in Disk Utility before you click EraseвЂ¦. This is supported by all versions of Windows and OS X (as well as Linux), but it has the drawback of not supporting individual files larger than 4GB вЂ“ which can be a pain if you work with large video files or databases. If you need compatibility with systems that are older than this, youвЂ™ll need to fall back to the ancient FAT32 format.

#How to reformat a usb drive on a usb full

In most cases we recommend you select MicrosoftвЂ™s exFAT format: this will give you full read and write access in both Windows (Vista or later) and OS X (Snow Leopard 10.6.5 or later). You can choose this from the drop-down menu in WindowsвЂ™ Format dialogue, or in the Erase pane of Disk Utility. To use your USB disk on both Windows and OS X, therefore, youвЂ™ll need to use a different filesystem.

#How to reformat a usb drive on a usb drivers

There are free drivers available, but again these are limited to read-only access. However, neither is suitable if you want to move files back and forth between Macs and PCs: OS X can read NTFS volumes, but it canвЂ™t write to them, while Windows in its default configuration canвЂ™t access HFS+ disks at all.

These formats are sensible defaults because they support all the features of their respective operating systems, such as native compression and encryption.

#How to reformat a usb drive on a usb mac os

If you follow the instructions above then Windows will, by default, format your disk using MicrosoftвЂ™s NTFS filesystem, while a Mac might suggest the Mac OS Extended filesystem.