This Windows update pop-up is a scam

ClickFix is a social engineering ploy that uses tactics like fake error messages, CAPTCHA forms, and command prompts to ...

Fake Windows update pushes malware in new ClickFix attack

The ClickFix campaign disguises malware as legitimate Windows updates, using steganography to hide shellcode in PNG files and bypass security detection systems.
PC Magazine

This Windows Update Screen Is Actually a Hacker's Trap

The fake update screen then encourages the user to press the Windows button together with the R key—a little-known function to open the run dialog box, a way to launch programs on a Windows PC. All ...
Bleeping Computer

ClickFix attack uses fake Windows Update screen to push malware

ClickFix attack variants have been observed where threat actors trick users with a realistic-looking Windows Update animation in a full-screen browser page and hide the malicious code inside images.