The usb drive is sometimes in use and will suddenly be protected by write, unable to read and write.
How to solve this problem?
Here are some ways to do this:
Turn off the switch on the usb drive
Some usb drives and readers themselves have switches.
Such write protection can be as simple as turning off the lights.
This is simple, but many people don't notice it.
When the usb disk is unable to read and write properly due to write protection, the first thing to consider is whether the write protection switch on the usb disk is off, and only when it is off can the read and write normally.
Try to repair the usb flash drive
If the computer can recognize the usb drive properly, we can do an attempt to repair it.
Right - click the U disk character and select properties from the pop-up menu.
In the open properties window, switch to the tools TAB and click the detect button.
In the pop-up window, if you need to check it, check it.
And click the start button to try to fix the write protection error on the usb drive.
(the following figure shows that there is no error in this usb flash drive, so there is no option to check.)