no computers cant detect my flash drive?

[xxjasonxx]

As of two days ago, not a single computer can detect my flash drive, I am using a sandisk cruzer micro 4gb. The light turns on in the flash drive letting me know there is power but no computer can detect it. I don't get the alert from windows that a usb device was connected. I go to my computer and its not there. I go to device manager and its also not there. This happened after I tried to install the u3 software on it, but it failed. After that no computer has been able to detect. How can I reformat it or fix it if no computer can detect it.

[lnp_ralte]

Sorry to say that there's no way to fix it if it is not detected, you know, you cannot fix an unseen damage.

[cooper]

sounds to me like your flash drive is broken so you might have to go get a new one hope anything you had on there was not important if there is there is a way to get it back but its the biggest pain in the ass ever