My Mac is frozen on the apple logo with some pink pixels close to it. How do I start it from here?
Needing help to start Mac?
iMac
Care to share which OS you are using as well as which model iMac you have?
Click on the following links & do the necessary:
How to identify iMac models - Apple Support
About the screens you see when your Mac starts up - Apple Support
Try safe mode if your Mac doesn't finish starting up - Apple Support
How to Reset NVRAM on your Mac - Apple Support