Click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X you will need to update/reinstall drivers right click to reinstall drivers if you can see your usb drive but its not working ports (com&lpt) right click update driver if this fails to fix the problem check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts you might have restore it to its defaults Right click on usb drive select properties you will have an array of options Select the hardware option then select your drive properties policies restore defaults In XP
Right click on your drive select properties then on customize restore Default in W 7
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hope this helps
My pc is not detecting sandisk Cruzer Micro 4GB usb 2.0 Flash Drive but it is working on other computers
SOURCE: sandisk 4GB cruzer micro usb
Are you connecting it to the back of your computer? Sometimes the port in front does not have enough power to power it on.Also please try another computer
SOURCE: win 7 does not recognize pen drive
Go to my computer, Removable Disk (E:), there you can open and add stuff to your usb, most computers dont recognize it.
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