ctct Sorry for inconvenience to you.
What is your current bios version?
Please try enabling secure boot
Regarding starting secure boot, please refer to:
① Please repeatedly press delete key as soon as you turn on the PC, go to BIOS.
②Navigate to Security page. Click secure boot and choose enable, change the secure boot mode to custom, press F4 to save.
③ When the PC restarts, press delete key to go to BIOS again. change the secure boot mode to standard and press F4 to save. The status will become active.