However, ever since my laptop came back from the HP repair shop in Poland, it has been making the strangest clicking and beeping noises. The two videos below hopefully give an impression of the noise it makes. It's not 'noisy' but has become so frequent that it is irritating and does point at some sort of fault. The last thing I want is to have the laptop sent all the way across Europe again, probably coming back with another fault, so I think I'll need to insist on some sort of on-site service. HP first need to determine the fault, as both a hard disk surface scan and a memory scan come out clean.
I'm sure that it's the hard drive, but they don't want to help me fix it. I'm tempted to just go and buy a replacement drive - maybe even an SSD - but the problem isn't frequent enough (yet) and doesn't appear to be causing system integrity issues.