Hi Joe Kennedy44,
Thank you for reaching Microsoft Community. We understand how inconvenient it is to have a touchscreen issue with your Surface laptop that has randomly stopped working, especially in the middle of a meeting or presentation. Let's work on this together.
Please try reinstalling the touchscreen driver from device manager and see if problem persist.
- In the search box on the taskbar, enter device manager, and then select Device Managerin the list of results.
- Expand the Human Interface Devicescategory.
- Right-click Intel(R) Precise Touch Device, select Uninstall device, and then, in the Uninstall Devicedialog box, select Uninstall.
- Right-click HID-compliant touch screen, select Uninstall device, and then, in the Uninstall Devicedialog box, select Uninstall. If you see two HID-compliant touchscreen drivers, right-click the first, select Uninstall device, select Uninstall, and then repeat the process for the second driver.
- From the Actionmenu, select Scan for hardware changes.****You may also need to restart your Surface. It will automatically download and install the touchscreen driver when connected to the internet.
- Use touch to open an application like Microsoft Edge or another web browser, and try to scroll, pinch to zoom, swipe in from the right, and long-press to test touch functionality.
Let us know how it goes.
Kind regards,
Lavenia