Typical scam, delivered with a different approach.
Scammer pretends to represent "Anydesk", when in fact they're trying to get it loaded to take over a PC.
Usually these scams ask for a small fee, then rob you once they get your card details.
This one is demanding £7k menacingly. https://twitter.com/uk_rants/status/1333780282839732230

1st examination of laptop & it's full of malware.
Not the usual crowded malware. Seems to have been trying to load a keylogger, but just can't get her AV turned off enough to get in.
They've scraped enough info from laptop to use on phone call.
Easy remedied, tears can stop.

They've scraped some info from her laptop, just enough to convince them the family has money.
Then assumed she's still away from home & thought she'd daftly part with some.
I'll get her a new SIM card & it'll all end tomorrow.
Nothing lost, just some upset/worry for a wee lassie.

They could've had her, had they asked for the obligatory £30 fee, and gained access that way.
She might've fallen for that.
They'd have got bank card & she might not have noticed until too late.
Greed was their undoing.
I might try to snare them on phone tomorrow for the craic.