1. Insert the Siemens Santis CD and wait until it starts.

2. Click Next

3. Read the License Agreement and click Yes.

4. Click every recurring Next and setup will start.

5. When ready just click Finish

6. Now plug in your modem in the USB Port 

7. Modem will start to install automatically.

8. If UP row/DOWN row arrows are shown in the taskbar, then your modem has installed properly.