I bough second hand laptop and now i get a white page saying deviceFreez-97286

[ALABSI7]

I bough this second hand laptop (hp elitebook 840 g8)

It was working find for 2 weeks now i get white screen with this message 

DeviceFreeze-97286

This computer has been reported lost or stolen. Your internet protocol address (ip address)has been recorded. Please contact the help desk immediately at [Content removed]

I am thinking I did a mistake posting the laptop details in marketplace to sell it and someone report it because it show the id number of the device, or maybe the last owner really stole it i don't know , but right now i am in the Philippines what could i do help me please 

[Jupitero]

Hello.

Someone sold you a laptop that has now been reported as stolen. There is no way out of this except typing the recovery key.

The previous owner - most likely a corporation - enrolled your laptop into Computrace. Only the person or organization that enrolled the computer can mark it as stolen and remotely freeze (and wipe) the computer. No-one else can freeze your laptop remotely.

Either please contact the seller for help or a refund (!), or call the helpdesk phone number showing on the screen. The original owners are the only ones who can help in un-freezing your laptop.

The original owner may have sold the laptop in good faith but someone there may think it is stolen and therefore marked it as lost/stolen and that's why your computer is not working anymore.