Remove U3 System from SanDisk


Bought a SanDisk Cruzer 16GB and found some smart software preinstalled which did not consider smart at all. Everytime I inserted the drive on any computer a CD drive with label U3 System“was mounted containing some funny .exe files. The whole “CD drive” took several MB of diskspace.

I wanted to get rid of it. Fortunately, I was not the first one beeing disturbed.

Sourceforge has a u3-tool which did the job:

  1. Download the tool to a place where you remember it
  2. Unpack the .tar.gz archive (I just rightclicked it and chose “extract here”). This creates a folder like /MyPathTo/u3-tool-0.3/
  3. open a terminal and type: cd /MyPathTo/u3-tool-0.3/
    ./configure
    make
    sudo make install

    Now u3-tool is installed and can be used.
  4. To remove the CD-like partition containing the firmware crap you need the device name of the USB disk: sudo fdisk -l gives the answer. In my case it is /dev/sdb1. Make shure you remember the right one.
  5. Remove the U3 partition with u3-tool -p 0 /dev/sdb1where /dev/sdb1 is the device name remembered from the previous step and the option -p is followed by a zero.

Done.

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