As a Windows user, I consider it as normal to reinstall my laptop regularly. Last time I did was a few weeks ago. Somehow I also managed to do this in a slightly different way than what I used to. The reason is that I removed the recovery partitions needed for recovery method provided by Windows.
Since then, I noticed my laptop could not go to the Sleep mode anymore. Instead, it would be just turned off. I checked the power setting and nothing was really suspicious. Then I found this. I followed the answer from John Rubdy. He mentioned three methods but I was just still doing the first method and it worked. A small note though: you should not type “Troubleshoot” but “Troubleshooting”.