I have recently purchased Lenovo ThinkPad SL510. I have found some issue in my laptop. It does not save any changes when I set something in power manager settings. I made changes to the power controls, I changed the power mode to sleep mode after 2 hours and I save the changes. After 2 hours I saw but the laptop was still on. It was not in the sleep mode. And when I tried to recheck the settings I found out that nothing has saved. It was very annoying. What should I do?? Please help me through this relevant topic. Any help would be appreciated. Thanks in advance.
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