Shutdown impossible, How to cancel a Norton subscription fan running Update KB5073455

Hello Dhiraj!
Thanks for reaching out. I have seen this posted as an issue on another forum and there is a workaround shared by one of the community members
Ongoing issues with shutting down laptop after cumulative update (KB5073455) Windows 11 - Microsoft Q&A

Quoting directly

The newest released Automatic Update 6 hours ago fixed it 

https://support.microsoft.com/en-us/topic/february-10-2026-kb5075941-os-build-22631-6649-25716be6-475b-4e2e-9ece-499d218c3b8e

February 10, 2026—KB5075941 (OS Build 22631.6649)

[OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some PCs which run Virtual Secure Mode (VSM) are unable to shut down or enter hibernation. Instead, the device restarts.