How to change the default boot animation of win7 to the image you want

Win7 boot animation modified first step:
Open the registry modify value "OEMBackground" is "1".
1. Press the "win key + r key" to open the run dialog box, enter "ldedit" in the box and then determine

2. Open in the tree structure below, find "ld"; The OEMBackground” value is “1”. [HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionAuthenticationLogonUIBackground]
win7 boot animation modify the second step:
put the picture <;backgroundDefault.jpg” in the directory "%windir%system32oobeinfobackgrounds".
win7 boot animation modify the third step:
see the effect
simultaneously press the win button + L button, that is, lock the account button, or start the menu - lock (O).
Note:
1. The image name is fixed, must be "backgroundDefault.jpg", and the size can not exceed 256KB, otherwise use Win7 default background.
2. If the registry value and directory do not exist, create it yourself.