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Cancel ''write protect'' on USB memory stick

4GB USB stick will not reformat, how do I cancel ''write protect''? No physical switch.

The stick shows as ''write protected'' when I try to delete files or reformat.

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If no physical switch, then check the software that came with. Some sticks have a software component that recognizes when you plug the stick in and gives you options for viewing and launching applications from the stick. There may be controls you can use to change the write protect.
If not, or you can also try, opening a view to the stick from Windows Explorer and just delete files from there as you would from any drive. Windows will prompt you to confirm delete. I wouldn't delete any auto-load or setup apps that would be used to connect to another computer.

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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what sysetm, mac,PC, DRV, TV?
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im googling like crazy what is this thing, ah, a flash drive?
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first off , if you removed the device with out ejecting it
using the windoz task abar USB Icon, then you will scramble that memory. (its just a matter of time. easy to do, as rolling dice)
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water logged.
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I sense that your usb memory is equipped with a physical write protect switch that you may have overlooked. Locate it, switch to the "non-writeprotected" (unlocked) mode and everything should work normally. Good luck!

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another example:
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