First of all, connect your ds4 controller using a usb cable just to make sure it is actually connected. Does windows make the new device is connected sound when opening ds4 Windows? If it does your ds4 XInput pad, is connected. It should also send you a notification saying something like "Setting up virtual Xbox 360 controller". If neither of those things happen, try to press start and stop a few times when the program is open. If that doesn't work either delete your ds4 windows appdata folder. If you can't find it just delete the program folder itself. After that open ds4 again, select program folder and press enter, select the step 1, Instal XXdriver, then select Step 2, Install virtual Xbox 360 driver, after that wait for a minute and press finish. Did anything change?
"Hello Jerry."
"Hello Newman."