can't go to boot loader page when i press enter

Can't go to boot loader page  when i press enter instead i see this message : 

BIOS Date: 07/20/2018 17:08:46 Ver: 5.0.1.1
Processor Type: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
Processor Speed: 3300 MHz
Total Memory: 12288MB (DDR4 2133)

USB Devices total: 0 KBDs, 0 MICE, 0 MASS, 0 HUBs

Detected ATA/ATAPI Devices...
Version 2.17.1255. Copyright (C) 2018 American Megatrends, Inc.
Sophos XG 330r2 Rev R1.02 (07202018)
Press <DEL> or <TAB> to enter setup.
Press <B> to enter BBS POPUP.

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