Keeps shutting itself down for "overheating" when interactive video used (Skype, Zoom, etc)

[APDLondon]

The spec: Pavillion Notebook AMD A10-8700P Radeon R6 (10 Compute Cores 4C + 6G) 1.80 GHz, 12 GB Ram, 64 bit OS, 1.8TB

The Problem: Keeps closing itself down for "overheating" whenever doing interactive video (Skype, Zoom, Adobe Connect, Google Hangouts, etc), which I need for work. Sometimes just when watching video (YouTube) too. Also generally very (very) slow. Especially loading web pages. And wireless connection terrible (compared with all other devices in same room - this has 1 bar and keeps droping off). Fans going full 100% of the time. 

What I've done so far: Profesionally cleaned (it wasn't dirty anyway), updated BIOS, defrag, System Checked (all passed), disk clean-up, etc. Long Drive Self Test currently going very slow (hanging at 20% after an hour). Blowing fans at it 24/7 - fully ventilated. All the wireless troubleshooting (keeps saying wire not connected properly - but it's WiFi)

What I need: HELP!!!  (please - it's just out of warranty)

[Huffer]

You can post in as many different places as you wish. Its still the hard drive. No good to shop for an answer you like better. 

[APDLondon]

There's really no need to be petulent. If you'd read it properly, my previous question (on someone else's post) was about the hard disk self test sticking and failing to complete, whereas this new post is about the more fundamental - and separate - issue of why the thing overheats when using 2-way video. If you don't want to help, that's up to you, but when we spend thousands of pounds on HP products, being ridiculed on the support forums is not the most helpful or brand-enhancing thing to receive. 

[Huffer]

I'm absolutely trying to help. The heating is not a separate issue. As the hard drive goes bad it takes a lot of effort from the system to try to move files around which results in heat and instability. Help is not going to be possible without some cooperation on the other end of the equation.