A few months ago I decided the time had come to retire my Windows Home Server which while it still worked had hard drives that were beginning to fall, and had limited memory. I replaced it by a QNAP NAS and purchased Macrium Reflect as a backup tool. With it in doing monthly full backups, weekly differentials (since last full) and incrementals (since last backup).
I also finally built myself a new PC and if course all was going great with it. One day though I noticed the backup had failed with a message that $MFT$ (or one of the internal NTFS files) was corrupted. No problem I thought let's just do a chkdsk. With the error being on the C drive this of course many doing it during the boot process.
Horror oh horror, the process failed with the PC rebooting during the chkdsk
I tried rebooting and the same thing happened.
Luckily I'd made recovery media which nervously I tried. WOW. It booted into Windows PE, loaded Macrium Reflect and listed the backups on the NAS!
Recovery was trivial but unfortunately the PC still continued to randomly power off
I tracked the issue down to the RAM modules being loose. How I don't know.
At least I can say I have working backups!