Taking ownership of system files in Windows Vista is a cumbersome process. There are two methods of taking ownership of system files in Windows Vista:

Method 1
=======
|_Log on as Administrator or a member of the Adminstrators group
|_|_Start Windows Explorer
|_|_|_Right click on the file/directory and select properties
|_|_|_|_Goto the Security tab and select Ownership
|_|_|_|_|_Click “Take Ownership” and then select Yes to the prompt

Method 2
========
|_Right Click on the Command Prompt window
|_|_Select Run As Administrator and click Continue
|_|_|_Type takeown /f filepath at the prompt
|_|_|_|_To grant permission to a user account, type icacls filepath /grant username:f

Here are two ways to make this process easier for you:

1) GUI based application, Take Control: Free application that allows you to add multiple files from different locations to a list and take their ownership with automatic elevated privileges. The utility also allows you to Save or Import the list of files for future use.

Free Image Hosting at allyoucanupload.com

Download Link

2) Context Menu: With this registry hack, you can right click on files and select the option to Take Ownership with the required elevated privileges Note: You account must be a member of the Admins group.

Free Image Hosting at allyoucanupload.com

Download Link