Removal script for Tobii and Nahimic software on Lenovo Legion 5 devices

badlenovo.ps1

# Version: 0.1 (2025-01-18)
# License: MIT, use at your own risk
#
# This script disables the Lenovo-installed "Tobii experience" software and "nahimic" software. 
# Tested on a Lenovo Legion Pro 5 (82WM) with Windows 11 24H2.
# Run it with `powershell.exe -noprofile -executionPolicy Bypass -File badlenovo.ps1`
# Following this script, you should be able to uninstall the "Tobii experience" app from the control panel (appwiz.cpl)
#
# After major updates, you may need to re-run this script.

# Disable services (may be re-enabled on reboot)
Get-Service -Name "Tobii*" | Stop-Service -Force
Get-Service -Name "Tobii*" | Set-Service -StartupType Disabled
Get-Service -Name "Nahimic*" | Stop-Service -Force
Get-Service -Name "Nahimic*" | Set-Service -StartupType Disabled
# Get the service exe paths
$services = Get-WmiObject -Class Win32_Service | Where-Object {$_.Name -like "Tobii*" -or $_.Name -like "Nahimic*"} | Select-Object PathName
$services = $services.PathName -split "`n" | ForEach-Object { $_.Replace('"', '').Trim() }
$services = $services -replace '\.exe.*', '.exe'
## use icacls to deny access to the service exes, so that they can't be started
$services | ForEach-Object {
    $servicePath = $_
    $acl = Get-Acl $servicePath
    $denyEveryone = New-Object System.Security.AccessControl.FileSystemAccessRule("Everyone", "FullControl", "Deny")
    $denySystem = New-Object System.Security.AccessControl.FileSystemAccessRule("SYSTEM", "FullControl", "Deny")
    $acl.SetAccessRule($denyEveryone)
    $acl.SetAccessRule($denySystem)
    Set-Acl $servicePath $acl
}

# Find "devices" that are installed by the Tobii or nahimic software and disable them
$devices = Get-PnpDevice | Where-Object {$_.FriendlyName -like "Tobii*" -or $_.FriendlyName -like "Nahimic*"} | Select-Object FriendlyName,InstanceId

$devices | ForEach-Object {
    $device = $_
    $instanceId = $device.InstanceId
    $friendlyName = $device.FriendlyName
    Disable-PnpDevice -InstanceId $instanceId -Confirm:$false
    Write-Host "Disabled device: $friendlyName"
}

BTW. To get the Tobii related drivers you can use the following:

# Open admin shell
dism /online /get-drivers /format:table | findstr "Tobii"

#oem147.inf     | lenovoyxx0extension.inf   | No    | Extension           | Tobii AB   | 2024-06-19 | 1.164.0.35934
#oem150.inf     | lenovoyxx0.inf            | No    | SoftwareComponent   | Tobii AB   | 2024-06-19 | 1.164.0.35934
#oem51.inf      | lenovoyxx0.inf            | No    | SoftwareComponent   | Tobii AB   | 2023-10-13 | 1.152.0.33335


# Backup them up, and then remove them with
pnputil.exe /d oemXX.inf

Deleting these drivers seems to only be possible if the host device is removed or disabled. I have removed with

# Open admin shell
# navigate to a directory like documents or tmp then
pnputil /enum-devices > devices.txt
# open devices.txt file and ctrl+f for "Tobii"
# there should be a device listed, with a driver inf matching what you are trying to remove
# now copy that device Instance ID and remove the device, for example:
pnputil /remove-device "USB\VID_045E&PID_00DB\6&870CE29&0&1"
# now you should be able to remove the driver inf with
pnputil.exe /d oemXX.inf

Time will tell if this needs to be repeated or not for me.

@ComicallyNormal

I'd be very careful with actually removing a device. If you accidentally get it wrong...that's a PITA to fix.

You can always remove a driver with the /force switch, so read the help from pnputil.exe --help.

    /delete-driver <oem#.inf> [/uninstall] [/force] [/reboot]

    Delete driver package from the driver store.
      /uninstall - uninstall driver package from any devices using it.
      /force - delete driver package even when it is in use by devices.
      /reboot - reboot system if needed to complete the operation.

    Examples:
      Delete driver package:
        pnputil /delete-driver oem0.inf
      Force delete driver package:
        pnputil /delete-driver oem1.inf /force

Instead disable the device, in case something goes wrong.

    /disable-device [<instance ID> | /deviceid <device ID>] [/class <name | GUID>]
                  [/bus <name | GUID>] [/reboot] [/force]

    Disable devices on the system.
      /deviceid <device ID> - disable all devices with matching device ID.
      /class <name | GUID> - filter by device class name or GUID.
      /bus <name | GUID> - filter by bus enumerator name or bus type GUID.
      /reboot - reboot system if needed to complete the operation.
      /force - disable even if device provides critical system functionality.

    Examples:
      Disable device:
        pnputil /disable-device "USB\VID_045E&PID_00DB\6&870CE29&0&1"
      Disable all devices with specific hardware/compatible ID:
        pnputil /disable-device /deviceid "USB\Class_03"
      Disable all devices of a specific class on a specific bus:
        pnputil /disable-device /class "USB" /bus "PCI"

2 month update: The initial script to cripple tobii and nahimic in place appears to be working just fine and has survived several minor windows updates.

It worked as well

@jcary741
@bryantc24
Thanks for reporting back.
I haven't looked at this lately, as I didn't have any further issues, and had more severe update issues with the bloated Intel Graphic driver.