Lenovo ThinkCentre A58e User Manual page 52

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4. Esc
5. Esc
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44
: Startup Device Menu
(Setup Utility)
Startup → Primary Boot Sequence
Startup
Sequence Error Boot Sequence
Esc
:
Load Optimal Defaults
2
Exit → Discard Changes and Exit
Esc
Esc
41
Automatic Boot
F10
Exit
F10