Solved

Run Powershell script on startup before user log on

Posted on 2011-09-09
2
1,670 Views
Last Modified: 2012-05-12
I have a PowerShell script which I used to add machine to a domain.  The purpose is to allow me to snap a VM to a clean state, before machine has been added to a domain.

I would like to be able to setup the snapshot of the VM so that when it starts up, it automatically runs the PowerShell script.
I tried populating the following registry key, but this only works after user logs on.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce

I then tried the following registry key, but nothing seems to happen:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServicesOnce

I also tried creating a scheduled task to call the script, and configured the task to run on start up, but nothing happen.

I think with the last two approach, the script is getting called too early, before a required service is loaded.

I know the script works, because it works when I call it on command line, and it works when I use the log on method (RunOnce) registry key.
Here's the PowerShell script:
$domainName="mydomain"
$domainPw="mypassword"
$domainAcc=$domainName + "\MyAdminUserName"

$comp = get-wmiobject Win32_ComputerSystem
$comp.JoinDomainOrWorkGroup($domainName,$domainPw,$domainAcc,$null,3)

$reboot = (gwmi -Class Win32_OperatingSystem)
$reboot.psbase.scope.options.enableprivileges = $true
$reboot.reboot()

Open in new window


Here's the DOS script which is used to call the PowerShell script:
rem schtasks /Delete /TN AddMachineToTestlabDomain
rem Above is only needed when using task schedule method
powershell Set-ExecutionPolicy RemoteSigned
powershell c:\AddMachineToTestlabDomain.ps1

Open in new window



Does anyone know how I can configure Windows 2008 machine to automatically get added to a domain on bootup without requiring user to log on?
Or how to call above script on bootup without requiring user to log on?
0
Comment
Question by:Axter
2 Comments
 
LVL 7

Accepted Solution

by:
Todar earned 500 total points
ID: 36512626
set the VM to auto login as the local admin on the workstation.

create a .reg file with the following in it: (Edit it to have your administrators password....in quotes)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

"DefaultUserName"="Administrator"
"Defaultpassword"="<put your password here>"
"AutoAdminLogon"="1"

run this on your VM before you snapshot it.

It will then boot up as the admin, your registry entries will run and run your script. you can then add to your powershell script to take out this auto login info from the registry so there are no traces of the admin password for prying eyes.
0
 
LVL 30

Author Comment

by:Axter
ID: 36513480
Not all the VM's have the same local administrative password, so I wouldn't be able to create a single script to configure the VM's.

I currently have a script to copy the PowerShell and batch file to the VM.
The script also adds the registry key settings.

Then I take a snapshot of the VM.
If I have to use method with local password, it wouldn't work on all of the VM's.

If I don't get a better posted method, I'll still this approach.
0

Featured Post

Are your corporate email signatures appalling?

Is it scary how unprofessional your email signatures look? Do users create their own terrible designs and give themselves stupid job titles? You can make this a lot easier for yourself by choosing an email signature management solution from Exclaimer today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Scenario:  You do full backups to a internal hard drive in either product (SBS or Server 2008).  All goes well for a very long time.  One day, backups begin to fail with a message that the disk is full.  Your disk contains many, many more backups th…
New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…
This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

26 Experts available now in Live!

Get 1:1 Help Now