Advanced Settings; Exiting From The Setup Utility Program - Lenovo ThinkCentre A57 9702 User Manual

Advanced settings

On some computer models, the Advanced settings menu includes a setting to
Enable/Disable HyperThreading. This feature works only with
HyperThreading-aware operating systems, such as Microsoft Windows XP. The
default setting for HyperThreading is Enabled. However, if you select Set Defaults
and are using an operating system other than Windows XP, your computer
performance might be degraded. Therefore, you should always set
HyperThreading to Disabled unless you are sure your operating system supports
HyperThreading.

Exiting from the Setup Utility program

After you finish viewing or changing settings, press Esc to return to the Setup
Utility program menu (you might have to press Esc several times). If you want to
save the new settings, select Save Settings or Save and exit the Setup Utility.
Otherwise, your changes will not be saved.
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User Guide