It shows that the PC is updating the Windows file. This is an online full-screen tool that is just for pranks. It does not update Windows or change any files on your PC or laptop.
Prank Screens
Blue Screen of Death (BSOD)
Broken Glass Screen
Broken Screen
Cracked Screen
Fake Virus Alert
Hacker Simulator
Fake Mac Error
Fake Loading Screen
Fake Screens
No Signal TV Screen
White Noise (TV Static)
Fake Radar Screen
Fake Video Call Screen
DVD Bouncing Logo
Flip Clock Screen
Waterfall Screen