Fixes #4264 Explain Exclude with Registry keys

reference/3.0/Microsoft.PowerShell.Management/Get-ChildItem.md

@@ -295,8 +295,22 @@ RESOURCEMAP
 UEFI
 ```
 
-`Get-ChildItem` uses the **Path** parameter to specify the registry hive **HKLM:\HARDWARE**. The
-hive's path and top level of registry keys are displayed in the PowerShell console.
+```powershell
+Get-ChildItem -Path HLKM:\HARDWARE -Exclude D*
+```
+
+```Output
+   Hive: HKEY_LOCAL_MACHINE\HARDWARE
+
+Name                           Property
+----                           --------
+ACPI
+RESOURCEMAP
+```
+
+The first command shows the contents of the `HKLM:\HARDWARE` registry key. The **Exclude** parameter
+tells `Get-ChildItem` not to return any subkeys that start with `D*`. Currently, the **Exclude**
+parameter only works on subkeys, not item properties.
 
 ### Example 7: Get all certificates with code-signing authority
 

reference/4.0/Microsoft.PowerShell.Management/Get-ChildItem.md

@@ -295,8 +295,22 @@ RESOURCEMAP
 UEFI
 ```
 
-`Get-ChildItem` uses the **Path** parameter to specify the registry hive **HKLM:\HARDWARE**. The
-hive's path and top level of registry keys are displayed in the PowerShell console.
+```powershell
+Get-ChildItem -Path HLKM:\HARDWARE -Exclude D*
+```
+
+```Output
+   Hive: HKEY_LOCAL_MACHINE\HARDWARE
+
+Name                           Property
+----                           --------
+ACPI
+RESOURCEMAP
+```
+
+The first command shows the contents of the `HKLM:\HARDWARE` registry key. The **Exclude** parameter
+tells `Get-ChildItem` not to return any subkeys that start with `D*`. Currently, the **Exclude**
+parameter only works on subkeys, not item properties.
 
 ### Example 7: Get all certificates with code-signing authority
 

reference/5.0/Microsoft.PowerShell.Management/Get-ChildItem.md

@@ -295,8 +295,22 @@ RESOURCEMAP
 UEFI
 ```
 
-`Get-ChildItem` uses the **Path** parameter to specify the registry hive **HKLM:\HARDWARE**. The
-hive's path and top level of registry keys are displayed in the PowerShell console.
+```powershell
+Get-ChildItem -Path HLKM:\HARDWARE -Exclude D*
+```
+
+```Output
+   Hive: HKEY_LOCAL_MACHINE\HARDWARE
+
+Name                           Property
+----                           --------
+ACPI
+RESOURCEMAP
+```
+
+The first command shows the contents of the `HKLM:\HARDWARE` registry key. The **Exclude** parameter
+tells `Get-ChildItem` not to return any subkeys that start with `D*`. Currently, the **Exclude**
+parameter only works on subkeys, not item properties.
 
 ### Example 7: Get all certificates with code-signing authority
 

reference/5.1/Microsoft.PowerShell.Management/Get-ChildItem.md

@@ -297,8 +297,22 @@ RESOURCEMAP
 UEFI
 ```
 
-`Get-ChildItem` uses the **Path** parameter to specify the registry hive **HKLM:\HARDWARE**. The
-hive's path and top level of registry keys are displayed in the PowerShell console.
+```powershell
+Get-ChildItem -Path HLKM:\HARDWARE -Exclude D*
+```
+
+```Output
+   Hive: HKEY_LOCAL_MACHINE\HARDWARE
+
+Name                           Property
+----                           --------
+ACPI
+RESOURCEMAP
+```
+
+The first command shows the contents of the `HKLM:\HARDWARE` registry key. The **Exclude** parameter
+tells `Get-ChildItem` not to return any subkeys that start with `D*`. Currently, the **Exclude**
+parameter only works on subkeys, not item properties.
 
 ### Example 7: Get all certificates with code-signing authority
 

reference/6/Microsoft.PowerShell.Management/Get-ChildItem.md

@@ -250,9 +250,9 @@ optional. For example, `-Path C:\Test\Logs` or `-Path C:\Test\Logs\*`.
 
 ### Example 6: Get the registry keys from a registry hive
 
-This command gets all of the registry keys from the **HKEY_LOCAL_MACHINE\HARDWARE** registry hive.
+This command gets all of the registry keys from the `HKEY_LOCAL_MACHINE\HARDWARE` registry key.
 
-`Get-ChildItem` uses the **Path** parameter to specify the registry hive **HKLM:\HARDWARE**. The
+`Get-ChildItem` uses the **Path** parameter to specify the registry key `HKLM:\HARDWARE`. The
 hive's path and top level of registry keys are displayed in the PowerShell console.
 
 For more information, see [about_Registry_Provider](../Microsoft.PowerShell.Core/About/about_Registry_Provider.md).
@@ -273,6 +273,23 @@ RESOURCEMAP
 UEFI
 ```
 
+```powershell
+Get-ChildItem -Path HLKM:\HARDWARE -Exclude D*
+```
+
+```Output
+   Hive: HKEY_LOCAL_MACHINE\HARDWARE
+
+Name                           Property
+----                           --------
+ACPI
+RESOURCEMAP
+```
+
+The first command shows the contents of the `HKLM:\HARDWARE` registry key. The **Exclude** parameter
+tells `Get-ChildItem` not to return any subkeys that start with `D*`. Currently, the **Exclude**
+parameter only works on subkeys, not item properties.
+
 ### Example 7: Get all certificates with code-signing authority
 
 This command gets each certificate in the PowerShell **Cert:** drive that has code-signing