Drivers usb 2.0 windows 7

i need usb drivers 2.0 . i dowgraded my  HP 15 r185nd to windows 7. but now my usb don't  work.
please help

I would reinstall W7 and make sure you install the Intel chipset driver, reboot, then install the Intel graphics driver, reboot, then the audio driver, reboot and then the USB 3 driver.
If you had no proof that the USB ports worked before you installed W7 on your notebook, I would contact HP technical support and file a support case under the warranty if your notebook is still under warranty.
As I stated...there are no separate usb 2 drivers for Windows Vista or Windows 7.

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