The most important aspect of personal computing is the site’s encouragement for people to be responsible for their own data.
Every 10-14 days I have a customer who has a hard disk fault and half of those incidents are 100% loss without recourse to a specialist recovery firm. I recommend Kroll Ontrack due to their company history and relationships with all hard disk manufacturers bar one, who refuses to supply spare parts to any third party. (They have huge resources to combat this I gleaned from a techy.)
Oh, did I mention – back up your F****** computer and phone?