The Lenovo Thinkpad E490 issued by the company has the error “0183: bad crc of security setting in efi variable” when it is turned on.

Solution:

1. Press F1 according to the prompt

2. After entering the bios, press F9 to restore the BIOS default settings

3. Press F10 to save and exit.

After restarting, the problem was solved.

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