I can't tell how old this is but the first order of business is to be ready for a wipe out. Be sure your backups are current and ready for a move to a new blank laptop, even if it's this one.
Try it without the laptop battery. I don't see how old this one is so I can't give the nod to try it without the battery or to advise you have it taken in under warranty.
hello. i have a HP pavilion 15 e026ax laptop. for past few days, i have to press power button multiple times to turn it on. everytime i press power button, the wifi dedicated light turn on for 1 sec. nothing happens to power button light. It happens until laptop finally turns on. If laptop is used and turned off and i turn it on after some time, it opens at once. But if it is kept off for long duration(more than 8 hours), then again i have to tap power button multiple times. So far, I have tried battery draining and direct power supply. Nothing worked. Any advice?

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