Handling USB flash drive prompt formatting and inaccessible methods

Some disks and mobile drives are prone to problems if you unplug them directly or are powered off.
When you insert it again, you will be prompted to format it. Baidu is under the aid of tools is really too troublesome. I remember the last time was directly through the cmd a command to take care of, so looked for a long. Finally found CHKDSK:H:/F/R.
where h represents a U disk. I don't know if I have added/R. I looked under/F to fix the error on the disk.
/R is to find the incorrect sector and restore readable information.
When I do, the problem comes again. Prompt cannot be accessed.
So I go directly to change permissions such as add everyone, what right button directly open and so on useless
Prompt when executing the command again: "Access is denied because you do not have sufficient privileges"
Many people say that the cmd command is executed with administrator privileges. It's useless to try.
Because in the process of just tossing the registry and then again touch back to look for.
cmd->gpedit.msc-> Computer Configuration, Administrative Templates, System--Removable storage access to the right of this click
Removable disk: Deny Read permission Right click Edit, disable to not configure.
If not, pay attention to the following so the removable storage and so on is not configured, then the USB drive to move the hard disk can be accessed normally.

Handling USB flash drive prompt formatting and inaccessible methods