HP Envy 360 laptop: Why does touchpad show hidded in Device Manager? thus does not work

[RamonC]

Currently this hardware device is not connected to a computer. (code 45)  Synaptics on I2C  HID Device

[Hawks_Eye]

Hi @RamonC 

Welcome to the HP Support Community! We're here to help you get back up and running.

I understand how frustrating it feels when your touchpad vanishes from Device Manager and stops responding. You’ve already checked the status, and I appreciate the effort you’ve put in. 

The Code 45 error means your HP Envy x360 laptop is not detecting the touchpad hardware, often due to a driver issue, power conflict, or a failed initialization. Let's walk through steps to restore touchpad functionality.

Step-by-Step: Restore Synaptics I2C HID Touchpad on HP Envy x360

Perform a Full Power Reset

• Shut down the laptop completely.
• Disconnect the power adapter and any peripherals.
• Press and hold the power button for 15 seconds.
• Reconnect power and boot up.
• This clears residual states that may block device detection.

Enable Touchpad in BIOS

• Restart the laptop and press Esc or F10 repeatedly to enter BIOS.
• Navigate to Advanced > Built-in Device Options.
• Ensure “Touchpad” or “Internal Pointing Device” is set to Enabled.
• Save changes and exit.

Update BIOS and Chipset Drivers

• Visit HP Envy x360 Drivers and Downloads.
• Enter your exact model (e.g., HP Envy x360 15-ee0000 series).
• Download and install the latest BIOS update and Intel/AMD chipset drivers.
• Restart your laptop after installation.

Reinstall Synaptics Touchpad Driver

• In Device Manager, right-click the hidden Synaptics I2C HID Device.
• Select “Uninstall device.”
• Restart the laptop.
• Windows will attempt to reinstall the driver automatically.
• If not, download it manually from the HP support page above.

Run HP App Diagnose & Fix

• Open the HP App.
• Go to Support > Diagnose & Fix.
• Run the tool—it checks for missing drivers and hardware conflicts.

Check Windows Updates

• Go to Settings > Windows Update.
• Install all available updates, including optional driver updates.
• These updates often include touchpad compatibility fixes.

Disable Power Management Conflicts

• Open Device Manager.
• Expand “Human Interface Devices.”
• Right-click Synaptics I2C HID Device > Properties > Power Management tab.
• Uncheck “Allow the computer to turn off this device to save power.”
• This prevents the touchpad from being disabled during sleep or idle.

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Take care, and have an amazing day!

Regards, 

Hawks_Eye