Powershell User logon script not Exiting With "Exit" scripts are set to be visible in GPO

Question

I am trying to run this script as a user logon script and it is set to visible to the user. There are other parts of the script but It won't ever Exit. It works fine if I run it directly I only have the trouble when it is in the logon script. I'm thinking
of tryin "Kill -Id $PID" but I'm sure I'll get a bad return code.
Has anyone else experienced this or hav any ideas what I could try?
If (Test-Path U:){
Robocopy U:\ $Destination /E /move /XF "*.inf"
New-Item -Path HKCU:\Software\test\test -Name Test –Force
Else{
Exit
Else{
New-Item -Path HKCU:\Software\test\1 -Name Test1 –Force
Exit       #here is where it will not stop!
Exit

Answer 1

Sorry, I did mention this was only a subset of the complete script.
So, what I am trying to accomplish in words.
1. Check for the existence of a certain folderon the c: Drive (that is created as apart of a different process)
2.  Look to see if a registry key exisits that tells the script if it should run or not. So if certain registry key exists under HKCU then don't run if not continue.)
3. The first time a user logs in and does not find the value that the process is allready complete show the user a message box aski9ng them if they are ready to do (something) if not write a registry key saying step one has completed and then quit.
4. When the user logs in again the script looks to see if the process is complete and or if step one is complete, if step one is complete it allows the user to skip the process 2 more times but on the forth login forces the user to complete the process and
writes the final registry key that it is complete.
Like I say I have this all working correctly if I manually have the user run it. I just don't know why Exit is not being recognized when in the users login script processing of the script. I appreciate your reply and any direction you can point me to.