Easy to use with no problems on any OS. I have had no compatability problems on any of my computers. Love the way it loads up and creates a separate icon on the desktop. I have tried the software preinstalled and downloaded additional from the website as well as other software that I use daily and can say that it all works great. Easy to uninstall U3 software if you want to use it as a normal pendrive and can be just as easily reinstalled. Just wish that they came in a coloured 4gb triple pack.

Great drives. Worked no problem on Vista (makes a change for something to work on vista) I love the way the retract into themselves so no more loosing those annoying tops. Made my life so much easier. 5 stars *****

I bought these as I use one at work and thought they would be good for myself and sons to use. However I couldn't get them to work at all and after troubleshooting on the U3 website it seems that there could be software on my computer that will not allow the U3 to start up and therefore I cannot access the drive to save or retrieve anything. There is an option to disable the U3 software but as I cannot even get the damn things to work at all I have been forced to get my husband to take them to work to do this and I cannot even see that I have the named software that it mentions could interfere with the drive on my computer in the first place. If you go to another site that sells these beginning with A there are loads of bad reviews about the U3 software, only wish I had read them before buying these. In future I would buy the sandisk drives but without the U3 software which is a shame as I do use it at work.