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MyITGuy / BootMgrLastUpdate.md
Last active March 17, 2026 13:13

Microsoft UEFI CA 2023 Boot Manager Signature Database (DB) fails to retain certificates after system restart

Symtoms

  • After the Scheduled Task runs and prior to a reboot, the Signature Database (DB) shows the Microsoft UEFI CA 2023 certificates, but the entries do not exist after a reboot.
  • Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecureBoot\Servicing
    • BootMgrLastUpdateError = 0x80004005 (2147500037)
    • BootMgrLastUpdateErrorReason = PCA2023NotFoundInDB
  • The Key-Exchange (KEK) does contain the Microsoft UEFI CA 2023 certificate changes.
@MyITGuy
MyITGuy / cmtrace_default_all_users.ps1
Last active March 14, 2026 21:54
$cmtrace = "${env:windir}\CCM\CMTrace.exe"
cmd /c assoc .log=CMTrace.LogFile
cmd /c assoc .lo_=CMTrace.LogFile
cmd /c ftype CMTrace.LogFile="$cmtrace" "%1"
@MyITGuy
MyITGuy / readme.md
Last active November 26, 2025 14:13

Entry Syntax

00000004 Install-map entry missing component key in populate [l:COMPONENT_NAME_LENGTH]'COMPONENT_NAME' [l:COMPONENT_VERSION_LENGTH]

Meaning

The v!COMPONENT_VERSION key is missing under HKEY_LOCAL_MACHINE\COMPONENTS\DerivedData\VersionedIndex\...\ComponentFamilies\COMPONENT_NAME.

@MyITGuy
MyITGuy / Get-SMSAdvertisement.psm1
Created November 24, 2025 20:07
#region Get-SMSAdvertisement
function Get-SMSAdvertisement {
[CmdletBinding()]
PARAM(
[Alias('PKG_PackageID')]
[Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
[string]
$PackageId
,
[Alias('PRG_ProgramName')]
@MyITGuy
MyITGuy / Get-CMSoftwareDistribution.psm1
Created November 24, 2025 19:44
function Get-CMSoftwareDistribution {
[CmdletBinding()]
PARAM(
[Alias('PKG_Name')]
[Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
[string]
$PackageName
,
[Alias('PKG_PackageID')]
@MyITGuy
MyITGuy / ConvertFrom-ByteArray.psm1
Last active October 16, 2025 20:58
function ConvertFrom-ByteArray {
[CmdletBinding()]
param (
[Alias('appid')]
[Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
[byte[]]
$byteArray
)
begin {}
@MyITGuy
MyITGuy / readme.md
Created September 29, 2025 14:13

System File Checker (SFC) Cannot Be Trusted

Known Problem

When executing System File Checker (SFC), aka. sfc.exe, on a computer known to have missing protected files, e.g., \Windows\System32\quser.exe, the computer returns 'Windows Resource Protection did not find any integrity violations.' when it should have returned 'Windows Resource Protection found integrity violations.'

@MyITGuy
MyITGuy / audit_gs_ad.ps1
Created September 15, 2025 13:44
$CommandText = @"
SELECT
[t1].[computer_id]
, [t1].[name]
, [t1].[serial_num]
, [t1].[last_inventory]
, [GS] = (SELECT TOP 1 UPPER([hostname]) FROM mmsettings)
FROM
[computer] [t1]
"@
@MyITGuy
MyITGuy / Get-WindowsTempExtensionSummary.psm1
Created September 9, 2025 21:43
function Get-WindowsTempExtensionSummary {
[CmdletBinding()]
param (
[Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
[string[]]
$ComputerName = $env:COMPUTERNAME
)
begin {
$ScriptBlock = {
$OutputObject = Get-ChildItem -Path $env:windir\temp -Recurse -File | Group-Object -Property Extension | ForEach-Object {
@MyITGuy
MyITGuy / LastPolicyRequestTimestamp.ps1
Created September 4, 2025 13:18
#region Get-CMInstallPath
function Get-CMInstallPath {
function Split-CommandLine {
[CmdletBinding()]
Param
(
[Parameter(Mandatory = $false, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, Position = 0)]
[ValidateNotNullOrEmpty()]
[string]$CommandLine
)