A user reports that their computer displays a "No OS found" error during startup. What is the best initial action to troubleshoot this issue?
Reinstall the operating system.
Run a disk error check from Recovery Console.
Verify the boot order in BIOS settings.
Disconnect all peripherals and restart the computer.
The most effective first step is to check the BIOS settings to ensure that the correct boot device is selected. If the BIOS is not pointing to the right hard drive or there are configuration issues, the system will not locate the operating system.
Other options, such as repairing the OS or checking disk health, may come later in the troubleshooting process once basic settings are confirmed.
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