What OS do you have?  Win10 has USB 3.0 built in.  So if you have that, that suggests another problem.  If you have Win7 which doesn't have USB 3.0 built in, then it could be a driver problem. EDIT:  Not sure how I missed it initially that you have Win10.  Might have to reload Win10 to get USB 3.0 working again. First, there's another trick to try.  With a flash drive or other peripheral plugged into USB 3.0, go into Device Manager and click on Update Hardware.  The icon for it is near the top of the window.
i need to use usb 3.0 these usb detect like other usb2.0, tried to uninstall usb by disabling usb. bios and usb have the latest update
Optiplex 9020 all USB 3.0 ports work the same as 2.0