Having recently suffered a disk failure on a laptop, I can emphasise the importance of backups. All my work gets backed up, so that wasn't really a problem. Recovery went as follows:
1. Order new disk, £50 and delivered next day.
2. Swap disk. Time taken, 10 minutes.
3. Re-install Windows part 1. Two hours, and I can't get the supplied video drivers to install.
4. Re-install Windows part 2. Pay professional to install Windows. Time taken (and paid for), five hours.
5. Install editors, compilers, CAD programs, revision control software etc. Time taken, 5 hours.
6. Restore work from backups. Time taken, 20 minutes.

From memory, my record on PCs and laptops is something like this.
1 laptop motherboard failure after 4 years
1 laptop disk failure
7 PCs retired as being too slow
1 PC with RAID5 had two disks fail simultaneously!