I found the below script and it's good, it Modify VM Advanced settings on an multiple VM, capture the VM Advanced setting details before and after VM setting changes for future comparison with the timestamp in .csv format.

I need assistance in order to modify the script and just to connect only via vCenter without preparing the ServerList file as the ENV is very huge and it's changing

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer -Server vcenter.local -User username -Password Password

$ServerListFile = "ServerList.txt"

$ServerList = Get-Content $ServerListFile

Foreach ($vm in $ServerList)

{

    $date=get-Date -format "ddMMyy_HHmm"

    Get-VM $vm| Get-AdvancedSetting | Select Name, Value | Export-CSV $vm"_Before_$date.csv"

    New-AdvancedSetting -Entity $vm -Name vmci0.unrestricted -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name RemoteDisplay.maxConnections -Value '1' -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name tools.setInfo.sizeLimit -Value '1048576' -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name floppyX.present -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name serialX.present -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name parallelX.present -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name ideX:Y.present -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.device.connectable.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.device.edit.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.tools.unity.push.update.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.tools.ghi.autologon.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.bios.bbs.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name vmsafe.enable -Value FALSE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.tools.copy.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.tools.paste.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name isolation.tools.autoInstall.disable -Value TRUE -Confirm:$False -Force:$True

    New-AdvancedSetting -Entity $vm -Name tools.guestlib.enableHostInfo -Value FALSE -Confirm:$False -Force:$True

    $date=get-Date -format "ddMMyy_HHmm"

    Get-VM $vm| Get-AdvancedSetting | Select Name, Value | Export-CSV $vm"_After_$date.csv"

    Start-VM -VM $vm

}

New-Item -ErrorAction Ignore -ItemType directory -Path Report

$path=$(get-location).Path+"\report\"

Move-Item *.csv $path -Force