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# Copyright © 2018, Microsoft Corporation. All rights reserved.
#*=================================================================================
# Parameters
#*=================================================================================
#PARAM ($drivers)
#*=================================================================================
# Load Utilities
#*=================================================================================
. ./utils_SetupEnv.ps1
#*=================================================================================
# Initialize
#*=================================================================================
Import-LocalizedData -BindingVariable Strings_Main -FileName CL_LocalizationData
#*=================================================================================
# Run detection logic
#*=================================================================================
Write-DiagProgress -Activity $Strings_Main.ID_Check_Unsigned_Driver
$global:unsignedflag = $false
$iid = "signed"
$debugmode = $false
$drivers = gwmi win32_VideoController |select DeviceID,Name,DriverVersion
foreach($driver in $drivers)
{
if(($driver.name) -ilike "*Microsoft Basic render*")
{
continue
}
else
{
$out = gwmi Win32_PnPSignedDriver | Where-Object -FilterScript {$_.DeviceName -eq $driver.Name}
if($out.getType().IsArray)
{
$out = $out[0]
}
# if driver is unsigned
if(($out.IsSigned) -eq $false)
{
# check for debug mode (intermediate check) before detecting the root cause
$global:unsignedflag = $true
$results = bcdedit
foreach ($result in $results)
{
if($result -ilike "*DISABLE_INTEGRITY_CHECKS*")# debug mode check
{
$iid = [string]::Format("{0} {1} debug mode unsigned", $driver.Name,$driver.DriverVersion)
$debugmode = $true
break
}
}
if($debugmode -eq $true)
{
update-diagrootcause -id "RC_UnsignedVideoDriver" -iid $iid -detected $true -Parameter @{"DName"= $driver.Name; "DVersion"=$driver.DriverVersion}
break
}
else # unsigned but not debug mode --> consider it signed (should not detect the root cause)
{
$iid = [string]::Format("{0} {1} normal mode unsigned", $driver.Name,$driver.DriverVersion)
update-diagrootcause -id "RC_UnsignedVideoDriver" -iid $iid -detected $false -Parameter @{"DName"= $driver.Name; "DVersion"=$driver.DriverVersion}
}
}
}
}
if($global:unsignedflag -eq $false)
{
update-diagrootcause -id "RC_UnsignedVideoDriver" -iid "signed" -detected $false
}