Ac adapter does not display on task manager and does not charge battery when laptop is on

[Breno1984]

Ac adapter does not display on the task manager and does not charge the battery when the laptop is on 

[WAWood]

@Breno1984 

What you describe could be the battery not charging or not holding a charge and/or the charger not working.

Here are some troubleshooting steps you can try:
http://support.hp.com/in-en/document/c00259897
http://support.hp.com/us-en/document/c03325217
http://support.hp.com/us-en/document/c00363266?jumpid=reg_r1002_usen_c-001_title_r0006

If those confirm the battery is not charging or not holding a charge, you would need to replace it.

If those confirm the charger is not working, you would need to replace that.

If both the battery and charger check out OK, then it's an internal problem with the circuitry in the laptop, and unless the laptop is still under warranty, it's likely to cost more to fix that than to replace the laptop, outright.

Good Luck