Windows 7: Wifi and audio button broken. How to active them?

Hi
In HP laptop with Windows 7, there is a touch buttons to enable and disable audio and wifi. Now they are disable and touch buttons doestno work. No missing drivers in device manager, but they dont works because touch is broken.

Is there any way to active wifi and sound without these buttons?

Did you just upgrade/install Windows 7 on that PC? If yes, its likely that the default drivers that windows installed lack the functionality to use those buttons. My Acer Aspire 5920 was like that initially. Installing the Acer supplied driver got everything working. Go the HP site and have a look at the driver downloads offered for you model. Start with the sound and WIFI drivers. If that doesn't work look for any utilities offered for control of media keys or something similar. My audio/media keys were actually part of my touch pad and didn't work until I installed Acers custom synaptics driver.