Here is the Tutorial on How to Convert Retail Edition to Volume License Edition There are three methods to convert retail to VL: Need: When compared to a Retail Edition of Office 2010,a VL edition is much easier to activate,it can be activated by KMS emulation method and using a MAK Key which have a lot of activations when compare to a retail key. Method 1: Use this method to change your retail installer to VL, ie... converting before installing. Step 1: First of all you need a retail version of the Office looks like "en_office_professional_plus_2010_x86_515486.exe"(name may differ in accordance with version and language) whcih can be obtained from here.. http://forums.mydigitallife.net/threads/17723-Office-2007-2010-Download-Links-Including-RTM Step 2:Now run the installer as administrator,wait till the yellow screen appears asking for Product Key,now take start menu and type "%temp%" without ",you may see a folder named "OWP6FC3.tmp" (may differ),now copy the entire folder to C:\ or other(NOTE: you should not close the installer till you finish copying) Step 3: Now look inside it for the folder named ProPlusr.WW for Professional Plus VISIOr.WW for Microsoft Project PrjPror.WW for Project Professional Delete that folder and replace with the folders of select Edition by WZOR. Step 4: Get those folders from here. http://forums.mydigitallife.net/thr...llation-to-Office-2010-VL?p=293323#post293323, You can also copy folder Admin to have Office Customization Tool. Step 5: Now you have a perfect VL edition of Office 2010,you can either make it an iso or a Self-Extracting zip file. Hope this will help you to get a little idea of this.. Thanks to spiralien for providing links. Method 2: (By "stanniemanl"): (recommended) Use the Office 2010 Installer Channel Switcher by stannieman,this tool allows you to convert your Retail installer to VL ISO and vice versa.. Get the Tool here... Office 2010 Installer Channel Switcher Method 3: (By "CODYQX4 & Bosh"): (recommended) Office 2010 Toolkit and EZ-Activator Use this method if you have already installed a Retail version,and you need to convert it to VL without any Reinstallation,also you can activate your Office for 180 Days via KMS with this tool.. Get the Tool from here Office 2010 Toolkit and EZ-Activator All Credits goes to Cody,Bosh,letsgoawayhell,spiralien,ZWT,stannieman and all MDL staffs.