Secure Boot is a feature of your computer's UEFI that only allows approved operating systems to boot up.
One key reason your laptop might not boot up without a battery is the power settings in the BIOS or UEFI. So, make sure that power-related settings are correctly configured in the BIOS/UEFI. First, ...
Safe Mode is a basic diagnostic mode for your operating system that starts the computer without most of its drivers and ...
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