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Flash Drive Mac OS X Windows
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How to Use a USB Flash Drive
A Flash Drive is a small self-powered drive that connects to a computer
directly through a USB port. It's both Mac and PC compatible, so you can
transfer files between both Macs and PCs. They are supported on all public
machines, although some flash drives require a user to install drivers before
use. Flash drives can hold any type of data, including excel, jpeg, video,
and
text files. Flash drives are also commonly referred to as key drive, thumb
drives, jump drives, USB drives and pen drives.
Table of Contents:
Introduction:
Flash drives are meant as a way to get files to and from multiple
computers. They are NOT for backups. We strongly
encourage users to backup files to CD-RW or CD-R disks or zip
disks.
Please note that not all flash drives are the same. Some may
require extra drivers to be installed on a computer in order for them to
function properly. Public computers do not allow drivers to be installed.
Therefore, not all flash drives will be compatible with public
computers.
Flash drives come with varying amounts of memory. You may
purchase a flash drive that is approximately the size of a zip disk, or 256MB.
Also, you have the option of purchasing a few 32MB drives instead of a single
256MB drive.
Some of the most popular brand name drives, are Lexar, Sandisk,
Kingston, PNY, and Iomega.
Copying files to a flash
drive on a PC:
- Open My Computer and see which drives are shown. Most computers,
for example, have a hard disk such as a C: drive and a few removable storage
devices such as a floppy drive, a CD-ROM drive, and perhaps a zip drive.
- Insert the flash drive into the USB port and watch to see where the USB
flash drive appears. Most will appear as removable storage, but some will
instead appear as hard drives. Note the name Windows
is using to refer to the flash drive ("Removable Disk (G:)," for example).
- Open My Documents or the location from which you want to transfer
files to the flash drive.
Select the files or folders you want to
save to the flash drive by left-clicking on them. To select more than one,
hold down the CTRL key while you click and select all of the files you wish
to save.
- Right-click on the file(s) or folder(s) you selected,
then select Send to, then select the name you saw appearing
in My Computer for the flash drive ("Removable Disk (G:)," for example).
- When the copying is finished, do
not immediately remove the flash drive from the USB port. Instead, left-click on the Remove Hardware
icon
located in the System
Tray. A window containing a list of the USB devices will appear. Left-click
on the Safely
Remove Mass Storage Device line that matches your flash drive (for
example, Safely Remove Mass Storage Device - Drive(G:)).
- When you see the following message appear in the bottom left toolbar,
it is, as it says, safe to remove the flash drive from the USB port; you
may close the message or ignore it, as it will close itself automatically:
Copying files from a flash drive on a
PC:
- Open My Computer and see which drives are shown. Most computers,
for example, have a hard disk such as a C: drive and a few removable storage
devices such as a floppy drive, a CD-ROM drive, and perhaps a zip drive.
- Insert the flash drive into the USB port and watch to see where the USB
flash drive appears. Most will appear as removable storage, but some will
instead appear as hard drives. Note the name Windows is using to refer to
the flash drive ("Removable Disk (G:)," for example).
- Double-click on the flash drive to locate the file(s)
or folder(s) you want to copy to this computer. Select the files or folders you
want to copy by left-clicking on them. To select more than
one, hold down the CTRL key while you click and select all of the files or
folders you wish to copy.
- Right-click on the files or folders you have selected and choose Copy.
- Open My Documents or the location to which you want to transfer
files from the flash drive.
- Click on the Edit menu, then select Paste.
- When the copying is finished, do not immediately
remove the flash drive from the USB port. Instead, left-click on the Remove Hardware icon
located
in the System Tray. A window containing a list of the USB devices will
appear. Left-click on the Safely Remove Mass Storage Device line
that matches your flash drive (for example, Safely Remove Mass Storage Device - Drive(G:)).
- When you see the following message appear in the bottom left toolbar,
it is, as it says, safe to remove the flash drive from the USB port; you
may close the message or ignore it, as it will close itself automatically:
Formatting a flash drive on a PC:
- Open My Computer.
- Right-click on the flash drive and choose Format.
- In the Format window, the capacity, file system and allocation unit size
should be chosen already.
- You can check Quick Format, which will clean your drive quickly but not
as thoroughly. A full format can take up to 10 minutes.

Copying files to a flash
drive on a Mac:
- Insert the flash drive into the USB port.
- A white USB drive icon will appear on the desktop:
- Find the files or folders you want to copy to the flash drive.
Select the files or folders you
want to save to the flash drive by clicking on them. To
select more than one, hold down the APPLE key while you click and select all
of the files and folders you wish to save.
- Drag and drop the selected files/folders to
the white USB flash drive icon.
- When you have finished copying, do not immediately remove the flash drive from the USB
port. Instead, drag the white USB drive icon to the Trash
Can, located on the Dock. Note: the Trash
Can will change to the Eject
Icon.
- The white USB drive icon will no longer be visible on your desktop. It
is now safe to remove the flash drive from the USB port.
Copying files from a flash
drive on a Mac:
- Insert the flash drive into the USB port.
- A white USB drive icon will appear on the desktop:

- Double-click on the white USB drive icon to see the files
and folders currently stored on the drive.
- Open the folder where you would like to copy the files or folders from
the Flash Drive.
- Back at the USB flash drive folder, select the files or folders you
want to copy from the flash drive by clicking on them. To select more
than one, hold down the APPLE key while you click and select all of the files and
folders you
wish to save.
- Drag and drop the selected files/folders to
the folder on the computer where you would like them to be copied.
- When you have finished copying, do not immediately remove the flash drive from the USB
port. Instead, drag the white USB drive icon to the Trash
Can, located on the Dock. Note: the Trash
Can will change to the Eject Icon.
- The white USB drive icon will no longer be visible on your desktop. It
is now safe to remove the flash drive from the USB port
Formatting a Flash Drive on a Mac
- Go to Go > Applications > Utilities and Open Disk Utility.
- Choose your drive from the left panel and then click Erase on the right.
- Choose Volume Format, MS-DOS File System will allow the drive to be read
on Mac's and PC's and a name.
- Click Erase.

Notes and Words of Caution
- Some USB flash drives may require a driver; these models will not work
in our public lab computers.
- You should be able to take a USB flash drive back and forth between Macintosh
and Windows computers; however, not all files are compatible with both platforms.
- Doug Chudzik, dchudzik@wellesley.edu
- Information Services
- Created: March 15, 2003
- Last Modified: August 7, 2006
- Expires: August 7, 2007