Preparations

Download the latest MSI from:
http://www.adobe.com/products/players/flash-player-distribution.html
(Apply to distribute Flash Player – Fill fields – Accept and Submit)
You will find download link in the email.

Download ORCA (MSI Editor)
http://www.technipages.com/wp-content/uploads/2007/11/orca.Msi

Customize MSI

Open the MSI file in ORCA editor
Open Table “Property”
Change ISCHECKFORPRODUCTUPDATES from 1 to 0
Change RebootYesNo from Yes to No
Save and Close

GPO Deployment

Copy MSI to “\\%UserDomain%\NETLOGON\Flash12”
Open Group Policy Management console

Create new GPO “Deploy_Flash12.X”
Expand “Computer Configuration – Policies – Software Settings”
Right click “Software Installations” and select ‘New – Package’
Browse to “\\%UserDomain%\NETLOGON\Flash12” and select the new MSI
Select deployment method: Assigned – Click OK

Testing and Assigning

Assign GPO “Deploy_Flash12.X” to Test OU
Run “gpupdate /force” – restart on prompt

If install went OK, assign the GPO to Production OUs.