How to get back Windows7 boot animation

Windows 7's default boot animation is a four-color ball rotation and a collection of Windows logo, but some users will encounter a green scroll bar instead of animation after Win7 boot. If you are also experiencing this problem, then you can refer to the official solution given by Microsoft. Microsoft explained that due to technical limitations, Windows 7's boot default resolution is 1024x768.
In the startup process, since the graphics card driver has not been loaded yet, these animations are all completed by the CPU, and the graphics display is completed by updating the buffer. Therefore, if the display resolution is lower than 1024x768, or the CPU is too bad, it may not be able to run the boot animation. In addition, incorrect system language settings or the use of some improper optimization operations can also cause this problem.
Workaround:
1, if it is a hardware reason, then you need to consider replacing the relevant parts.
2, if the hardware supports, then you can check the system language settings for errors and fix the error.
— Find <;Attachments" in "Start->All Programs". Right click on “command prompt”, select “Run as administrator”.

— Type bcdedit in the command window and press Enter. Check that the language corresponding to the locale under Windows Boot Manager and Windows Boot Loader is consistent with the Windows 7 system language.

— If they are inconsistent, please type the following command in the command window to modify it:

(Note: XX-XX stands for language. For example: China zh-CN)

— Restart the computer to take effect.
— If the boot animation still does not appear, try using the installation CD to fix the boot animation with the repair option.