MY 8GB SANDISK CRUIZER MICRO USB STICK SHOWING 0 MB, NO MEDIA UNKNOWN DEVICE, I EVEN TRIED WITH DISKPART METHODE, NOTHING IS WORIKING, WHILE TRYING TO FORMAT FROM THE DEVICE PANEL, IT TELLS DEVICE I/O ERR. PL GUIDE. agvr

SOURCE: computer does not recognize 2GB Memory Stick

Format as Fat 16. Also, Sandisk has a solution to this on their site. http://www.sandisk.com/DriverDownload/index.asp

Alex Howard

• 484 Answers
• Posted on Jun 14, 2009

SOURCE: Format 8gb sandisk micro sd problem

Often times, these jump drives have a tiny, nearly invisible read-only switch on them. Check to see that it isn't set to read only, which will inhibit formatting, among other things.

SOURCE: SanDisk Usb Flash 8GB unable to format

TRY SOME OF THESE STEPS BEFORE YOU THROW IT

I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and OTHER devices (though not always)

A few things to check but assumes USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.

1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability

2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)

3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.

4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.

5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port

If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further

USB flash drives can fail for no apparent reason.
Sandisk Cruzers are especially bad for this.

USB hard drives should be treated with extreme care.
This is a real hard drive ! and knocks and bumps can quite literally kill them.

It is possible to remove drives from the enclosures in most cases and connect directly inside a PC to fully check it.

Note that if you hear a drive clicking or pinging this could be the worst thing you would hear.
Known as "The Click Of Death"

If none of the above steps help look at updating the drivers from the manufacturers web site in the support section.
　
　
　

SOURCE: Sandisk U3 Cruzer Micro 8Gb Cant Format :S

rite click on it in mycomputer and click propertys to see if your thunb drive even has memory on it could have ben fried by sum and has no memory now

SOURCE: unable to format my SanDisk Cruzer Micro 8GB USB

1. 1 Insert your memory card into your computer's reader if you have one. If not, you can purchase a multi-format USB Memory Card reader from Amazon.com or Buy.com
   
2. 2 Open up 'My Computer'. You should see it under the list of available drives.
   
3. 3 Check its contents first to make sure that you have the right drive.
   
4. 4 In 'My Computer', right-click on the drive and choose 'Format'.
   
5. 5 Leave all the options as they are and click on 'Start'. This is a non-reversible process so make sure this is what you truly wanted to do in the first place.
   
6. 6 Once the process is completed, take the memory card out and insert it into your Digital Camera or any other device. Try to browse to it to make sure it works fine now.