Help searching Windows' registry keys, display results with enough info for proper ID

I made a mistake of installing the latest version of Avira Free antivirus. I took a break from my PC once I got the installation process started for Avira, but when I returned an half hour later it wasn't done. It was frozen with an animated buffer wheel stating above it "Preparing Installation". Canceling wouldn't work, so I stopped the process via Task Manager where I noticed it left cripple processes of the antivirus behind. I had to go into safe mode to delete the executables and junk files, and now I have around a ton of registry keys left behind (I'm guessing because I've been manually deleting these keys forever, but there are still a ton left over! I keep finding them!) Avira Registry Cleaner can't fix this!

So I decided to create my own registry cleaner, where I find the Avira keys, list them in a listview, ensure they're owned by Avira (manually removing keys from the listview that are not), then select the junk to be deleted in one shot.

I found the below code just for searching the registry, but I can't get it to work:

Function for searching:

Code:

---

Imports Microsoft.Win32
Imports System.Runtime.CompilerServices

Public Module Extensions
    <Extension()> _
    Public Function ContainsValue(ByVal RegKey As RegistryKey, ByVal Value As Object) As Boolean
        For Each ValueName As String In RegKey.GetValueNames()
            If RegKey.GetValue(ValueName) = Value Then
                Return True
            End If
        Next

        Return False
    End Function
End Module

---

Usage:

Code:

---

Using MyKey As RegistryKey = Registry.CurrentUser.OpenSubKey("SOFTWARE").OpenSubKey("HomeApp")
    If MyKey.ContainsValue("KG65326") = True Then
        'Do your stuff here.
    End If
End Using

---

Could someone please help me get all of the above to work in an app? Also how to show enough info from the results in a listview so I can verify the keys.

Thanks!

Noting that it is not a good idea going through the registry and especially here as you need to go in every subkey of subkey of subkey etc.
Here is an examle on finding a value on CyberLink software

Code:

---

  Using MyKey As RegistryKey = Registry.CurrentUser.OpenSubKey("SOFTWARE").OpenSubKey("CyberLink")
            If MyKey.ContainsValue("APBurnImageProgress") = True Then
                'Do your stuff here.
            End If
        End Using

---

Code:

---

Imports Microsoft.Win32
Imports System.Runtime.CompilerServices

Public Module Extensions
    <Extension()> _
    Public Function ContainsValue(ByVal RegKey As RegistryKey, ByVal Value As Object) As Boolean



        For Each ValueName As String In RegKey.GetSubKeyNames
            For Each strvlalue In RegKey.OpenSubKey(ValueName).GetValueNames()
                If strvlalue = "APBurnImageProgress" Then
                    'do stuff               
                End If
            Next
        Next
        Return False
    End Function
End Module

---

I'm gettin' old!

I forgot Windows' System Restore in Safe Mode can fix this problem. All traces of Avira has been removed. :)