How to Take Ownership in Windows 7 and 8

Sometimes you can't move, replace, or delete files/folder in Windows because you doesn't have permission to do that. To get the permission, you have to take the ownership of the files/folder.
Here are the steps to take the ownership with Command Prompt (cmd):

1. Open Command Prompt (run as Administrator is very recommended).
2. Write: takeown /f "[full_path]" then press enter.
3. You should get a message: SUCCESS: The file (or folder): "[full-path]" now owned by user "ComputerName\username"

Update:
Registry key to add take ownership to context menu:

• Windows 7
• Windows 8