: Go to chrome://version on your Chromebook and note the "Platform" name (e.g., "octopus").
If the Chromebook is your property (not a school-issued device), you can put it into Developer Mode to uninstall forced management extensions. unblock websites for school chromebook
: On a personal device, download the Shimmer .bin file corresponding to your platform name and use the Chromebook Recovery Utility to flash it onto an 8GB USB drive. : Go to chrome://version on your Chromebook and