I can't open my flash drive. When I inserted it to my computer it would just appear a removable disk and then when I tried to open it tells that there is no disk on the dirve. Can this be fixed? what should I do to open it so that I can Use it again. Hope you can help me with this problem. thanks

try download this tool http://flashboot.ru/files/public/Alcor/FC_MpTool_FC8308_FC8406_v.2.02.00.rar

click on FC mptool.exe

you will have blink numbers 01 02 03 ...
put your us drive it will apraer on number 01
clic on start menu in the right
wait when finish it will work

Sounds like you corrupted the MFT (master file table) on the flash drive. Format the flash drive and start over. You could also try something like GetDataBack after you flash the drive to recovery your data.

Windows XP should be able to automatically detect and install it. Try using it on another computer that has either Windows XP, Vista , or Windows 7 on it. If it doesn't automatically detect and install it on that one then the flashdrive is dead.

Steps for connecting your USB Flash Drive

Step 1: Take off the cap and insert your flash key into the USB port. The USB port is usually located on your CPU tower (just below where you insert your floppy disk or CD. There will be a symbol that looks like a 'sideways cactus.' See picture.
USB symbol
Note : Some computers will have the USB port located on the back of the CPU Tower.

Step 2: Next, you can double-click on "My Computer" on your desktop or hold down the "Flag" key and the letter "E" at the same time (the "flag" key is located between the Ctrl and Alt keys on your keyboard, see picture). This will open up "My Computer".


Step 3: Once you open up "My Computer" to open your flash key, you will need to double-click on it, which at your home computer will either be the E:, F:, or G: drive.

Note: The reason for why the drive letter might differ, is that your flash key is a "removable" storage so it assigns the next available drive letter. Also, once you insert your flash key in again, the F: drive will change its name to PKBACK, or Removable Disk, or even to the brand name of the flash key such as "Kingston".

Steps for disconnecting your USB Flash Key


Step 1: Make sure that you have saved the documents you have been working on and then close them by clicking on the big red X in the upper right-hand corner.

Step 2: Once everything is closed, click once on the little green arrow at the bottom right of the task bar (see picture).


A message in a box will appear saying "Safely Remove Hardware", or "Safely remove USB Mass Storage Device". Click once on that message.

Step 3: It should now be safe for you to take out your Flash key.


Note : If you want to be certain it is safe, go into "my computer" and check to make sure that the "removable disk" and drive letter your flash key was assigned have disappeared.


Note: If the green arrow still appears, click on it again and it should disappear. If a message appears saying "The device 'Generic Volume' cannot be stopped right now. Try stopping the device later", you will want to make sure that all of your programs or documents on your flash key are closed out.

If you re-try it and the message still appears, push Ctrl + Alt + Delete on your keyboard and then shutdown your computer. You can then take out your flash key or you can re-boot the computer and follow the same process above. You should then be able to remove it safely.

Flash drives are a very useful storage device because of their reliability and memory capacity. Learning how to use them may take a little experience, but once understood the flash drive can assist you in many ways with not only your data files, but using software that the host computer does not have. Also remember that a flash key is not indestructible, so you will want to use more than one physical location to store your data, such as your computer's hard drive, etc.

First thing to do is to safely remove your flash drive..
then insert it again...

If it doesn't work then your final choice is to make loss of your data..
here's how.
on the icon shown from your flash drive right click
then format..
You can select quick format in there..
and there you go again,, you can use your flash drive now....

1. Open control panel.
2. Open administrative tools.
3. Open Computer management.
4. In the left column click disk management.
5. This populate all the disk present
6. Locate your memory card
7. Then you can delete the partition entire and build new one
8. You can format with Fat Or FAT32 file system
9. Do not perform quick format.

Another options are available to format via cmd
To do that
At the run Menu type:CMD
then a command promt window will open
Type format x: /fs:fat32
Note that x is volume label (memory card drive label may d, e or f)
ok
try this

Sometimes when a flash memory stick fails because it was not removed from the USB port properly. If the device is removed by just pulling it out of the USB port, it can cause the flash device to fail, you must click on the Safely Remove Hardware icon on the Task Bar and select the device you wish to remove and only do so when instructed to do so.

When the flash memory device appears to malfunction it maybe possible to restore it by reformatting it. Insert the flash drive into the USB port then Click on Control Panel - Administrative Tools - Computer Management - Disk Management.
Then right click on Disk 1 removable drive and click Format. After the flash drive has been formatted it will indicate that it is Healthy.

You need to format the external drive. Format the drive as primary drive and in FAT32. (FAT32 will allow data to be exchanged between MACs and PCs).
Insert the external hard drive into the USB port then Click on Control Panel - Administrative Tools - Computer Management - Disk Management.
Then right click on Disk 1 removable drive and click Format. After the flash drive has been formatted it will indicate that it is Health

Scan you pendrive for Virus from another computer who has effective antivirus program & it have latest Update.

Norton is my trusted.

Thanks.

hey, heres something that would help u:  Copying files to a flash drive on a PC:

1. 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. 
   
2. 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).
   
3. 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. 
   
4. 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).
   
5. 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:)). 
   
6. 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:

1. 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. 
   
2. 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).
   
3. 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. 
   
4. Right-click on the files or folders you have selected and choose Copy.
   
5. Open My Documents or the location to which you want to transfer files from the flash drive. 
   
6. Click on the Edit menu, then select Paste.
   
7. 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:)). 
   
8. 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:
                                         =========================================================

For the security system setup go through the following link .. http://www.rohos.com/configuring_usb_stick_logon.htm

if u require some other sort of security system let me know.
cheers

try to rerfresh on MY COMPUTER then it will appear on E, if it won't open, right click then Explore.