Powershell - Check for Registry value and change if not correct

Question

_{Thursday, June 14, 2012 5:32 PM}

Hello,

I'm fairly new to powershell and I want to change a registry value.

Ideally, this is what it would do...

1. Check the value of the key hklm:software\microsoft\windows\currentversion\policies\system -name enablelua
2. if the value is 0, do nothing
3. if the value is not 0, set it to 0

Can anyone help me out with this?

Thanks,

Scott

All replies (8)

_{Thursday, June 14, 2012 5:49 PM ✅Answered | 5 votes}

Hi Scott,
Check Get-ItemProperty and Set-ItemProperty

$val = Get-ItemProperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name "EnableLUA"
if($val.EnableLUA -ne 0)
{
 set-itemproperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name "EnableLUA" -value 0
}

_{Thursday, June 14, 2012 5:49 PM ✅Answered | 1 vote}

$value =(Get-Itemproperty hklm:software\microsoft\windows\currentversion\policies\system).enablelua
 
If ($value -ne 0){
 Set-ItemProperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name enablelua -Value 0 
}

Give that a try

_{Thursday, June 14, 2012 5:51 PM ✅Answered}

Try this:

if ((Get-ItemProperty 'hklm:software\microsoft\windows\currentversion\policies\system' -name enablelua | select -exp enablelua) -ne 0) {
    Set-ItemProperty 'hklm:software\microsoft\windows\currentversion\policies\system' -Name enablelua -Value 0 }

Grant Ward, a.k.a. Bigteddy

_{Thursday, June 14, 2012 5:55 PM}

$value =(Get-Itemproperty hklm:software\microsoft\windows\currentversion\policies\system).enablelua
 
If ($value -neq 0){
 Set-ItemProperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name enablelua -Value 0 
}

Give that a try

That -neq should be -ne, no?

Grant Ward, a.k.a. Bigteddy

_{Thursday, June 14, 2012 5:56 PM}

Hi Scott,
Check Get-ItemProperty and Set-ItemProperty

$val = Get-ItemProperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name "EnableLUA"
if($val -ne 0)
{
 set-itemproperty -Path hklm:software\microsoft\windows\currentversion\policies\system -Name "EnableLUA" -value 0
}

I don't think this will work, because you need to select out the value of the particular property. Try it and check the value of $val.

Grant Ward, a.k.a. Bigteddy

_{Thursday, June 14, 2012 6:01 PM}

yes it should be -ne instead of -neq

I am not at a machine I can test, but it should work, as I used that in a previous post, just a slight modification.

_{Thursday, June 14, 2012 6:58 PM}

Thanks everybody. Very helpful!

_{Thursday, March 6, 2014 2:02 AM}

Here is the blog post that you can use

http://msexchange.me/2014/01/02/readwrite-registry-for-multiple-servers-via-powershell-part1/

http://msexchange.me/2014/01/04/readwrite-registry-for-multiple-servers-via-powershell-part2/

Sukhija Vikas