Dell G7 17-7790, remove SupportAssist EFI Feature

Every second reboot my Dell G7 7790 (G7 i9-9880H) is stuck with this Dell SupportAssist "feature" which starts to test devices components and by the end of that process makes an incredibly loud and ugly alarm sound that can give you a heart failure or wake up everybody in the night, but what is worse of all - it interrupts boot sequence waiting for user to press the button! I lost my workstation several times while rebooting remotely, had to come home to press the button. Is there any way to turn this Dell SupportAssist off for good?