The spinning ring or circle shown during Windows startup is not handled in the same way as a normal desktop animation, and changing an OEM boot logo does not automatically change it. On modern Windows systems, parts of the boot animation are associated with special glyphs contained in the Segoe Boot font files, while Windows Boot Manager and the operating-system loader control when those graphics are displayed. Removing the boot graphics is relatively straightforward through Windows boot configuration, but replacing the spinner with a completely custom animation is considerably more complicated and is not an officially supported customization.
What Is the Windows Boot Ring?
The rotating dots or circular loading indicator displayed underneath the Windows or manufacturer logo is commonly called a spinner or throbber. It belongs to the Windows boot user interface rather than the normal Windows desktop interface. This distinction is important because changing wallpapers, themes, startup applications or ordinary Windows resources does not affect it.
During a typical UEFI startup, the firmware may first display the computer manufacturer's logo. Windows then takes over the graphical boot environment and can continue displaying that logo while adding its own loading indicator underneath it. On a Lenovo Legion, for example, the Lenovo logo and the rotating Windows indicator can therefore originate from different parts of the startup process.
Why Segoe Boot Semilight Is Relevant
Windows includes specialized boot fonts under the Windows boot font directory, including files such as segoe_slboot.ttf. Segoe Boot Semilight contains ordinary characters as well as special glyphs used by the Windows boot interface. The rotating-dot appearance can be produced by displaying a sequence of those glyphs rather than decoding a conventional GIF or video file during startup.
This explains why searching Windows system resources for a simple spinner GIF, PNG sequence or video usually leads nowhere. The visual information can exist as vector outlines inside a TrueType font, while the Windows boot code controls the timing and sequence in which those glyphs appear.
| Boot element | Typical source | Normal customization difficulty |
|---|---|---|
| Manufacturer logo |
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