Because Windows frequently tries to overwrite older drivers with "newer" ones, follow this specific process to keep version 17.0.18.8 active:
Synaptics Driver Version 17.0.18.8 is a proprietary software package developed by Synaptics (now a subsidiary of TPK Holding Co., Ltd., though the brand name remains). This driver enables communication between the Windows operating system and the Synaptics touchpad hardware embedded in your laptop. synaptics driver version 17.0.18.8
Stability & reliability
Even a stable driver like 17.0.18.8 can fail due to system conflicts. Here are the most frequent issues and fixes: Because Windows frequently tries to overwrite older drivers