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### Other Problems

Difficulties | Suggestions
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The machine will not turn on. | Adverse conditions on the power connection (such as lightning or a power surge) may have triggered the machine’s internal safety mechanisms. Unplug the power cord. Wait for ten minutes, then plug in the power cord and press to turn on the machine. If the problem is not solved and you are using a power breaker, disconnect it to make sure it is not the problem. Plug the machine's power cord directly into a different known working wall electrical socket. If there is still no power, try a different power cable.
The Lenovo software cannot be installed. | (Windows®) If the Security Software warning appears on the computer screen during the installation, change the Security Software settings to permit the Lenovo product setup program or other program to run. (Macintosh) If you are using a firewall function of anti-spyware or antivirus security software, temporarily disable it and then install the Lenovo software.

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