Win10, do not know why, U disk much the right mouse button "from the media to install or run the program", lead to double-click unable to open (right click to open, all U disk, all usb on the other computer is normal), if it is Windows 7, in the HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ MountPoints2 delete keys can be overcome, but win10 don't know, ask talent show,