diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e234c8..075100f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- `Compare-DscParameterState`
+  - Changed detailed diagnostic messages from `Write-Verbose` to `Write-Debug`
+    for variable values, type comparisons, and internal diagnostics.
+  - Comparison result still uses `Write-Verbose` to provide user-actionable
+    information about parameter state differences.
+- `Test-ModuleExist`
+  - Changed module filtering messages from `Write-Verbose` to `Write-Debug`
+    for internal implementation details.
+- `Test-IsNanoServer`
+  - Changed operating system SKU diagnostic message from `Write-Verbose` to `Write-Debug`.
+- `Find-Certificate`
+  - Changed certificate filter diagnostic message from `Write-Verbose` to `Write-Debug`.
+- `Get-LocalizedDataForInvariantCulture`
+  - Changed file processing message from `Write-Verbose` to `Write-Debug`
+    for internal diagnostic information.
+
 ## [0.24.1] - 2025-08-27
 
 ### Added
diff --git a/source/Public/Compare-DscParameterState.ps1 b/source/Public/Compare-DscParameterState.ps1
index 9dd41b6..f2ce244 100644
--- a/source/Public/Compare-DscParameterState.ps1
+++ b/source/Public/Compare-DscParameterState.ps1
@@ -309,7 +309,7 @@ function Compare-DscParameterState
             # This is a credential object. Compare only the user name
             if ($currentType.Name -eq 'PSCredential' -and $currentValue.UserName -eq $desiredValue.UserName)
             {
-                Write-Verbose -Message ($script:localizedData.MatchPsCredentialUsernameMessage -f $currentValue.UserName, $desiredValue.UserName)
+                Write-Debug -Message ($script:localizedData.MatchPsCredentialUsernameMessage -f $currentValue.UserName, $desiredValue.UserName)
                 continue # pass to the next key
             }
             elseif ($currentType.Name -ne 'string')
@@ -321,7 +321,7 @@ function Compare-DscParameterState
             # Assume the string is our username when the matching desired value is actually a credential
             if ($currentType.Name -eq 'string' -and $currentValue -eq $desiredValue.UserName)
             {
-                Write-Verbose -Message ($script:localizedData.MatchPsCredentialUsernameMessage -f $currentValue, $desiredValue.UserName)
+                Write-Debug -Message ($script:localizedData.MatchPsCredentialUsernameMessage -f $currentValue, $desiredValue.UserName)
                 continue # pass to the next key
             }
             else
@@ -352,7 +352,7 @@ function Compare-DscParameterState
         #region Check if the value of Current and desired state is the same but only if they are not an array
         if ($currentValue -eq $desiredValue -and -not $desiredType.IsArray)
         {
-            Write-Verbose -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, $currentValue, $desiredValue)
+            Write-Debug -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, $currentValue, $desiredValue)
             continue # pass to the next key
         }
         #endregion check same value
@@ -368,18 +368,18 @@ function Compare-DscParameterState
         # if there no key, don't need to check
         if (-not $checkDesiredValue)
         {
-            Write-Verbose -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, $currentValue, $desiredValue)
+            Write-Debug -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, $currentValue, $desiredValue)
             continue # pass to the next key
         }
         #endregion
         #region Check if desired type is array, if no Hashtable and current type hashtable to
         if ($desiredType.IsArray -or $desiredType.ImplementedInterfaces -contains [System.Collections.IList])
         {
-            Write-Verbose -Message ($script:localizedData.TestDscParameterCompareMessage -f $key, $desiredType.FullName)
+            Write-Debug -Message ($script:localizedData.TestDscParameterCompareMessage -f $key, $desiredType.FullName)
             # Check if the currentValues and desiredValue are empty array.
             if (-not $currentValue -and -not $desiredValue)
             {
-                Write-Verbose -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, 'empty array', 'empty array')
+                Write-Debug -Message ($script:localizedData.MatchValueMessage -f $desiredType.FullName, $key, 'empty array', 'empty array')
                 continue
             }
             elseif (-not $currentValue)
@@ -510,7 +510,7 @@ function Compare-DscParameterState
                     }
                     else
                     {
-                        Write-Verbose -Message ($script:localizedData.MatchElementValueMessage -f $i, $desiredType.FullName, $key, $currentArrayValues[$i], $desiredArrayValues[$i])
+                        Write-Debug -Message ($script:localizedData.MatchElementValueMessage -f $i, $desiredType.FullName, $key, $currentArrayValues[$i], $desiredArrayValues[$i])
                         continue
                     }
                 }
diff --git a/source/Public/Find-Certificate.ps1 b/source/Public/Find-Certificate.ps1
index 48b0c7c..c6f4a2a 100644
--- a/source/Public/Find-Certificate.ps1
+++ b/source/Public/Find-Certificate.ps1
@@ -176,9 +176,7 @@ function Find-Certificate
     # Join all the filters together
     $certFilterScript = '(' + ($certFilters -join ' -and ') + ')'
 
-    Write-Verbose `
-        -Message ($script:localizedData.SearchingForCertificateUsingFilters -f $store, $certFilterScript) `
-        -Verbose
+    Write-Debug -Message ($script:localizedData.SearchingForCertificateUsingFilters -f $store, $certFilterScript)
 
     $certs = Get-ChildItem -Path $certPath |
         Where-Object -FilterScript ([ScriptBlock]::Create($certFilterScript))
diff --git a/source/Public/Get-LocalizedDataForInvariantCulture.ps1 b/source/Public/Get-LocalizedDataForInvariantCulture.ps1
index 162db08..34c8f0b 100644
--- a/source/Public/Get-LocalizedDataForInvariantCulture.ps1
+++ b/source/Public/Get-LocalizedDataForInvariantCulture.ps1
@@ -136,7 +136,7 @@ function Get-LocalizedDataForInvariantCulture
         }
         else
         {
-            Write-Verbose -Message ('Getting file {0}' -f $languageFile)
+            Write-Debug -Message ('Getting file {0}' -f $languageFile)
         }
 
         $constrainedState = [System.Management.Automation.Runspaces.InitialSessionState]::Create()
diff --git a/source/Public/Test-IsNanoServer.ps1 b/source/Public/Test-IsNanoServer.ps1
index 0991d47..f6db70a 100644
--- a/source/Public/Test-IsNanoServer.ps1
+++ b/source/Public/Test-IsNanoServer.ps1
@@ -25,7 +25,7 @@ function Test-IsNanoServer
 
     $operatingSystemSKU = (Get-CimInstance -ClassName Win32_OperatingSystem).OperatingSystemSKU
 
-    Write-Verbose -Message ($script:localizedData.TestIsNanoServerOperatingSystemSku -f $operatingSystemSKU)
+    Write-Debug -Message ($script:localizedData.TestIsNanoServerOperatingSystemSku -f $operatingSystemSKU)
 
     return ($operatingSystemSKU -in ($productDatacenterNanoServer, $productStandardNanoServer))
 }
diff --git a/source/Public/Test-ModuleExist.ps1 b/source/Public/Test-ModuleExist.ps1
index 85ad92c..2127006 100644
--- a/source/Public/Test-ModuleExist.ps1
+++ b/source/Public/Test-ModuleExist.ps1
@@ -103,7 +103,7 @@ function Test-ModuleExist
 
     if ($modulePath)
     {
-        Write-Verbose -Message "Filtering modules by path '$modulePath'."
+        Write-Debug -Message "Filtering modules by path '$modulePath'."
 
         $modulesToEvaluate = $availableModules |
             Where-Object -FilterScript {
@@ -119,7 +119,7 @@ function Test-ModuleExist
     {
         $moduleVersion, $modulePrerelease = $Version -split '-'
 
-        Write-Verbose -Message "Filtering modules by version '$moduleVersion'."
+        Write-Debug -Message "Filtering modules by version '$moduleVersion'."
 
         $modulesToEvaluate = $modulesToEvaluate |
             Where-Object -FilterScript {
@@ -128,7 +128,7 @@ function Test-ModuleExist
 
         if ($modulesToEvaluate -and $modulePrerelease)
         {
-            Write-Verbose -Message "Filtering modules by prerelease '$modulePrerelease'."
+            Write-Debug -Message "Filtering modules by prerelease '$modulePrerelease'."
 
             $modulesToEvaluate = $modulesToEvaluate |
                 Where-Object -FilterScript {