A touchpad that's not responding on an Acer Aspire E5-511G after a Windows 10 upgrade can often be resolved by updating or reinstalling the touchpad drivers, enabling the touchpad in settings, or restarting the computer.
Here's a more detailed breakdown of troubleshooting steps:

1. Check Touchpad Settings:
   Enable Touchpad:
   Press the Windows key + X, go to Settings, click on Devices, then Touchpad, and ensure the touchpad is enabled.
   Adjust Sensitivity and Other Options:
   Explore the touchpad settings to see if any adjustments are needed for responsiveness.
2. Update or Reinstall Touchpad Drivers:
   Update Through Windows Update: Go to Settings > Update & Security > Windows Update and check for updates.
   Update Through Device Manager: Press Windows key + X, go to Device Manager, expand Mice and other pointing devices, right-click the touchpad driver, and choose "Update driver".
   Download from Manufacturer's Website: If updating through Windows doesn't work, visit the Acer support website and download the latest touchpad driver for your specific model.
3. Restart Your Computer:
   A simple restart can sometimes resolve temporary software glitches.
4. Check for Hardware Conflicts:
   Run Hardware and Devices Troubleshooter:
   In the search bar, type "Troubleshooting" and select "Hardware and Devices".
   Check Device Manager for Errors:
   In Device Manager, check for any exclamation marks next to the touchpad device, which may indicate a hardware issue.
5. Reset Touchpad Settings to Default:
   In Settings, go to Devices > Touchpad and scroll down to "Reset touchpad to default".

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