Win7 how to modify the boot screen

First click on the tool in the Explorer, select the folder option.

Switch to the View tab, remove the tick in front of the extension that hides the known file type, and click OK to save.

Then go to the Registry Editor and click on the directory "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionAuthenticationLogonUIBackground" and double-click "OEMBackground" in the list on the right.

To modify the numeric data to 1, click OK.

After completing the folder options and registry, open C:WindowsSystem32oobe, create a new info, and then create a folder called "Backgrounds", and put the image that needs to be the boot screen into the file.