How to stop the rename the cn again if it had meet the condition

Question

How to stop to rename the CN in Active directory if running the script.
This is my script:
$objSearch = New-Object DirectoryServices.DirectorySearcher
$dateNow = Get-Date
$DomainDNS = "server2008.server1.com" #server 2008
$ADpath = [ADSI]"LDAP://$DomainDNS/ou=power shell test,dc=server1,dc=com"
$objSearch.Filter = '(&(objectClass=user)(objectCategory=person)(!samaccountname=user1))'
$objSearch.SearchRoot = $ADpath
$objSearch.PageSize = 1000
$objSearch.SearchScope = "subtree"
$objResults = $objSearch.Findall()
write-host 'objResults: ' $objResults
foreach($objResult in $objResults){
$objuser = $objResult.GetDirectoryEntry()
$name = $objuser.cn
write-host "name:" $name
if (($objuser.cn -notcontains "DA$name")){
$changeName = "DA" + $name
write-host 'CHANGE NAME: ' $changeName
$objuser.rename("cn=$changeName")
$objuser.CommitChanges()
else {
continue
The result I get is :
what I want the result is:

Answer 1

I don't understand your pictures.
Start with this as it is less prone to failure.
$searcher=[adsisearcher]'(&(objectClass=user)(objectCategory=person)(!samaccountname=user1))'
$searcher.SearchRoot='LDAP://ou=power shell test,dc=server1,dc=com'
$searcher.Findall() |
ForEach-Object{
$user=$_.GetDirectoryEntry()
write-host "name:$($user.name)"
if($user.cn -ne "DA$($user.name)"){
$changeName="DA$($user.name)"
write-host "CHANGE NAME:$changeName"
$user.rename("cn=$changeName")
$user.CommitChanges()
¯\_(ツ)_/¯