Depending on your specific laptop, the power button will be located in slightly different places.
What Do I Do If My HP Laptop Wont Turn On?
If you press the power button and your HP laptop doesnt turn on, it may not be broken.

The power button for HP’s Spectre x360 13 is found on one of the back, angular corners.Jon Martindale
There are a number of steps it’s possible for you to take to attempt to fix the problem.
Plug in its charger and retry.
It may be that it was just out of battery.
verify youre using the right charger.
Many laptop chargers look the same.
Fix a PC that turns on but displays nothing.
Sometimes external devices can cause errors which block a laptop from booting up.
Once everything is unplugged (except for power), retry to turn it on.
This will drain any residual charge from the laptop.
Turn on your laptop withWake-on-LAN.
Clean the laptop’s vents.
Use compressed air to clean out any dust buildup if its a problem.
Have the laptop professionally repaired.
If none of the above works, youll need to take your rig in for repair.
If itsunder warranty, consider taking it back to the retailer, or HP.
Some HP laptops may have a physical Wi-Fi switch that must be turned on.
The steps forenabling Bluetooth on Windows 10are the same for all PCs.Enabling Bluetooth on Windows 7is a little different.