How to disable User First SIgn-in Animation via a task sequence

We are looking to do an in-place upgrade from 1703 to 1709.
We create a reference image (.wim) file in MDT 2013, we bring it over to SCCM 2012 R2.
We do not create drivers in MDT we do that in SCCM 2012 R2.

When we do this in-place upgrade to 1709 is there are way to disable 'User First Sign-in Animation'.  
I know there are two ways GPO, Registry key.
I know you can also do it via unattend.xml.  We do not want to touch this.

Can I create a task sequence to do this in SCCM 2012 R2.                

Can someone help me I am so new to imaging.

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David Johnson, CD, MVPOwnerCommented:
yes you can add it to your task sequence to add the registry item

regedit.exe /s path of .reg file i.e.
regedit.exe /s %scriptdir%/Disable_First_User_Animation.reg

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zero000koolAuthor Commented:
Do I have to put those two keys can I just use this:

reg.exe add "HKLM\Microsoft\Windows NT\CurrentVersion\Winlogon" /v
EnableFirstLogonAnimation /t REG_WORD /d /0 /f

I've seen several ways to do this.

David Johnson, CD, MVPOwnerCommented:
do both the policies an the winlogon
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zero000koolAuthor Commented:
thanks I will try it,   this should work if  I create a task sequence in SCCM correct?
David Johnson, CD, MVPOwnerCommented:
yes or add it to an existing task sequence.
zero000koolAuthor Commented:
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