For whatever reason you want to
How to Disable the Touchscreen on Windows 10
Laptops with touchscreen capabilities such as Microsoft Surface and other devices are quite common these days. However, not everyone finds the touch function necessary or useful for their daily tasks.
On a Windows device, the touchscreen function is usually enabled by default, allowing you to navigate the laptop's operating system with your finger.
If your screen is cracked, you find the feature too distracting, or you simply don't use your laptop's touchscreen, you can simply disable it and continue working.