How to use a usb flash drive

the sim card has to be registered with your service provider
contact them and they will give you the PUK code

This will get the drive back, but you WILL lose the data. If you need the data. I do not know the answer. Repost your question to go to Sandisk site below

'.............U3 smart drives come preinstalled with the U3 Launchpad which emulates the Windows OS start menu, and controls program installation and hence facilitate the portability of software. However, if you would like to use the USB flash drive or memory key as a pure normal USB mass storage device, or you don't use operating system that U3 supports (i.e Windows XP and Windows 2000 operating systems), or you simply feel that U3 Launchpad and applications have bugs such as unable to eject due to locked files in use, consent on privacy and automatic installation of U3 software and pop-up etc, you can uninstall and remove the U3 Launchpad from the USB storage device.

To remove and delete the U3 Launchpad, you need to download U3 Launchpad uninstallers or U3 Launchpad Removal Tool that remove the U3 Launchpad and re-configure the USB drive to be a single mass storage USB drive. Currently, U3 Launchpad uninstallers are only available for and must be run on Windows XP or Windows 2000 machine. When uninstalling, the U3 smart drives USB device has to be plugged in with U3 Launchpad running.

U3 Launchpad Removal Tool for SanDisk USB U3 devices can be downloaded here, http://u3.sandisk.com/

WARNING: U3 Launchpad removal is irreversible. You won't be able to install U3 again. Beside, backup your data before begin uninstallation process as ALL data will be erased.

UPDATE: It's impossible to reinstall U3 LaunchPad........."

Thanks for using FixYa - a 4 THUMBS rating and POSITIVE TESTIMONIAL is really appreciated for the FREE answering of your question.

sandisk 4gb macro u3 smart intaler

WE CAN NOT INSTALL ANTIVIRUS IN EXTERNAL DRIVES . BECAUSE THEY DONT HAVE OPERATING SYSTEM.. INSTALL ANTIVIRUS IN PC AND USING THAT YOU HAVE TO SCAN YOUR PEN DRIVE.THATS IT. TO CHECK YOUR DRIVE U CAN TRY USB DISK SECURITY SOFTWARE AND SMART VIRUS REMOVER 1.5 FROM WWW.TECHNIZE.COM

U3 is the software application launcher, download and replace it with an updated version. This being availibile on www.sandisk.com site. Hope it helps

Here's the manufacturer's driver download site. Find the right product and operating system here:http://www.sandisk.com/DriverDownload/index.asp

We can fix it -- and recover the data (provided it is recoverable -- which it generally is). If we don't get your data back, we ship the drive back to you and you pay nothing. We've been recovering data for over 16 years and are successful about 85% of the time.

Craftsman Computer Services, Cudahy, Wisconsin

Strange... Vista does seem to have a problem with everything Sandisk...

Anyway, this should be all you need:

Launchpad Installer

Launchpad Uninstaller

Is the account that your tying to access the drive with an Administrator account? If not, Log in as Administrator and try to access the new drive. If you ARE using Administrator privileges on the vista machine, the problem lies in the U3 smart driver. Try downloading and installing the drivers for the XP SP2 os on scan disks website, If vista rejects the install package off of the scan disk website, let me know and i'll extract the drivers and build an install for them for you.

Vista has not been out long enough for any company to state that there product is compatible. I would check there website to see if they have updated drivers that will make the sandisk usb drive compatible. This may fix the problem!