In case the above drivers do not work for you, do as described below:
- Go to the HTC official site
- Type the name and model of your device in the search box.
- Select your device and click the Support tab/button.
- In the support page, click the downloads tab.
- Here you will get the download link for the specific HTC Sync Drivers for your device.
- After downloading HTC Sync, start the installation process. You only need to install the USB driver and not the app itself.