No Problem.
On the Lock Screen, Press and hold the Shift key. Then, click the restart button on the lock screen located at the bottom right situated in the Power menu, to open the Windows Recovery options.
If you cannot reach the Lock screen or start your computer, restart your PC two times when the boot screen is shown. If your PC has no restart button, press and hold the Power button until the computer shuts down. Do this twice.
On the third time, windows should open Windows Recovery options automatically.
You can follow the steps from there to uninstall the update.