do also try a different AC adapter that has the same voltage and see if it will work or not.
Remove the battery and power the laptop with just the AC adapter connected and see if it will boot up or not.
If this will not work, do test the AC adapter if it's working properly. Start by doing a hard reboot, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds then try booting it up again. Does it still boot up or load into Windows when you power it on or does it just stay on a black screen? Please do try these troubleshooting steps that may help.
