How to FIX: Lenovo Ideapad 100S Keyboard, Touchpad and Audio Stopped Working (Solved).
If you own a Lenovo Ideapad 100S laptop and have encountered issues where the keyboard, touchpad, and audio have suddenly stopped working, this article provides comprehensive instructions to resolve the problem effectively.
This peculiar issue often arises after installing Windows 10 updates, rendering the laptop nearly unusable without an external mouse. Follow the steps below to restore functionality to your keyboard, touchpad, and audio components.
How to Resolve Lenovo Ideapad 100S-11IBY Keyboard, Touchpad, and Audio Malfunctions in Windows 11/10.
Important Notes:
1. First, verify that your keyboard is operational and not physically damaged. You can test this by accessing the BIOS setup:
- Turn off your laptop.
- Turn on your laptop and immediately press F2 or (Fn+F2) repeatedly to enter the BIOS settings. Alternatively, use F12 or (Fn+F12), or press the Novo button when the laptop is off.
- If you can navigate the BIOS settings using the arrow keys, your keyboard is functional. Proceed with the methods below. If not, skip to method 5.
2. If your keyboard works in BIOS but not on the Windows login screen, try the following:
- Connect an external USB keyboard to enter your password, or…
- Use an external USB mouse to click the Ease of Access icon
on the login screen and open the On-Screen Keyboard to enter your password. After logging in, follow the methods below to resolve the issue.
Method 1. Uninstall the Last Update(s)
If the issue started after a Windows 10 update, the update might be the cause. To resolve this, connect an external USB mouse and remove the latest installed update:
1. From the Start 
menu, choose Settings 
and click Update & security.
2. Select Update history.
3. Choose Uninstall updates.
4. Click Installed On to sort updates by date, then select and Uninstall the most recent update.
5. After the uninstall, restart your computer to apply changes and check if the keyboard, touchpad, and audio are functioning.
Method 2. Install Intel Platform Drivers
Installing the correct Intel Platform drivers can resolve hardware communication issues:
1. Visit the Lenovo Ideapad 100S-11IBY support site.
2. Click on Motherboard Devices (core chipset, onboard video, PCIe switches).
3. Download the Intel Platform Driver (VGA, Audio, TEXI, Camera, Bay-Tail) for Windows 10 (32-bit) – ideapad 100S-11IBY.
4. Double-click the downloaded file and follow the onscreen instructions to install the driver package.
5. Restart your laptop.
Method 3. Power Drain your Laptop
Performing a power drain can reset hardware components and resolve functionality issues:
- Shut down your laptop via Start and the Power button using the external mouse.
- Disconnect all peripherals.
- Disconnect the AC Power Cable.
- Press & hold the power button for 50-60 seconds.
- Release the power button and press it once more to turn on the laptop.
- If the keyboard still doesn't work, try disconnecting the battery or allow the laptop to discharge completely. Seek professional help if needed.
Method 4. Update Device Drivers
Ensuring all device drivers are up-to-date can prevent hardware conflicts:
- Open Device Manager by right-clicking the Start button and selecting Device Manager.
- Expand categories to find the devices you want to update, such as Keyboards, Sound, video and game controllers, and Mice and other pointing devices.
- Right-click each device and select Update driver.
- Choose Search automatically for updated driver software and follow the prompts.
- Restart your laptop to apply changes.
Summary
To resolve issues with the Lenovo Ideapad 100S keyboard, touchpad, and audio, start by uninstalling recent Windows updates, installing the correct Intel Platform drivers, and performing a power drain. Additionally, ensure all device drivers are updated to prevent hardware conflicts. Following these steps should restore full functionality to your laptop.
We hope this guide has been helpful. If you have any questions or feedback, please leave a comment below. Don't forget to share this article with others who might benefit from it!
Frequently Asked Questions
What should I do if the keyboard, touchpad, and audio stopped working on my Lenovo Ideapad 100S after a Windows 10 update?
First, plug in an external mouse to navigate through the solutions. Begin by checking if the keyboard works in the BIOS settings. If it does, consider uninstalling the recent Windows 10 updates or installing Intel Platform drivers for your laptop. For a more drastic approach, you can perform a power drain to potentially resolve the issue.
How can I test if my Ideapad 100S keyboard is functional?
You can verify your keyboard's functionality by entering the BIOS settings. To do this, turn off your laptop, turn it back on, and immediately press F2 or FN+F2 repeatedly. Ensure you can navigate through the BIOS menu with the keyboard. If it responds, then the keyboard is functioning mechanically but may have a software issue in Windows.
How do I uninstall the last Windows 10 update to fix my Lenovo Ideapad 100S issues?
Using an external mouse, go to Start > Settings > Update & security > Windows Update > Update history. Then, choose 'Uninstall updates' and select the most recently installed update. Follow the prompts to remove it, and restart your computer afterwards to check if the keyboard, touchpad, and audio are functional again.
Where can I download the Intel Platform drivers for the Ideapad 100S-11IBY?
You can download the necessary Intel Platform drivers by visiting the Lenovo Ideapad 100S-11IBY support site. Look for 'Motherboard Devices' and download the Intel Platform Driver package that includes VGA, Audio, TEXI, Camera, and Bay-Tail components for Windows 10 (32-bit). Follow the installation instructions and restart your laptop afterwards.
