After installing an update yesterday and rebooting, my laptop is now stuck at the startup blue page with rotating circledots. Every once in a while the screen flickers as if it is installing a graphics driver, BUT it doesn't make sense to flicker 100+++ times. I've tried leaving it on for an hour longest, but I doubt it will even continue. It probably is looping the installation over and over again, leaving me no access to the computer.

I'm unable to boot into safe mode as well because the same thing happens. System restore failed, fml.

Please tell me it is possible to cancel the update installation even before accessing the startup...