U disk unreadable repair steps

U disk unreadable repair steps

In some cases, the USB flash drive will appear one or the other faults. For example, if a "RAW format" error is unreadable, here's how to solve this problem:

The first step: First enter the "Control Panel" and switch to the classic view, find "Administrative Tools", double-click to open, double-click to open the "Local Security Policy", click the plus sign in front of the "Local Policy", and then click "Security Options, find the "Network access: Sharing and security model for local accounts" item in the right window, and then change the security setting "Guest-local user from guest authentication" to "Classic - Local user with own Authentication".

The second step: Open "My Computer", right click on the RAW format partition, click Properties, in the pop-up properties dialog box to find the "Security" tab, the "Group or user name:" list box garbled Delete, then add the user of this machine.

Tip: If you right-click the partition, in the pop-up properties dialog box does not have a "security" tab, you can open "My Computer", click on "Tools" - "Folder Options" - "View", "Use a simple file The check mark in front of share (recommended) can be canceled.

When the above method cannot be solved, you can save the U disk file with software such as easyrecovery, and then proceed with the low grid. If you still can not find the U disk, you can right-click on "My Computer" and select "Properties", then in the pop-up window, select "Hardware", "Device Manager", in the hardware list, select "Universal Serial Bus Controller" , Right click on "properties" in the following USB MASS STORAGE DEVICE, select "Details" in the pop-up window, select "hardware ID" in the list box, see if there is VID and PID (also can use "ChipGenius V2 .55 U disk master chip detection "and other software), and then in this site with VID and PID to find the main control chip manufacturer and model information. Use mass production tools to repair U disk.

If you still can not repair the U disk, it may be a U disk internal damage, you can contact professional repair points back to the manufacturer to repair.

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