What to Back Up (and What to Skip)
Backup everything you can't re-download:
- Irreplaceable: photos and videos, documents, tax records, saved game files, browser bookmarks/passwords (export or use a synced password manager), the '_notes' files of your life.
- Re-creatable (skip or last): installed programs (re-install from winget — see our utilities list), Windows itself, the Steam library you can re-download, application settings you'll re-tune.
This distinction halves backup size and time: ~50–200 GB for most households, not 2 TB of programs.
The 3-2-1 Setup, Household Edition
- Copy 1 — the live data: your files on the PC (that's what you're backing up).
- Copy 2 — local backup: an external USB drive with scheduled, versioned backups. Windows' built-in File History (Settings → Backup) does this free and well: hourly versions, easy file-by-file restore. Budget drive: 2 TB external, ~$60, buy a name brand.
- Copy 3 — off-site: either cloud backup (Backblaze: unlimited, ~$99/year, genuinely zero-config for the whole drive) or the rotation method — a second external drive that lives at a relative's/office and comes home monthly to update.
Cloud sync services (OneDrive etc.) can substitute for copy 3 IF you use their version history (OneDrive keeps 30 days; paid tiers more) — ransomware and accidental deletions then have a recovery path. But a dedicated backup app remains the gold standard.
The Ransomware Clause (Why 'Attached Drive' Isn't Enough)
Modern ransomware encrypts every drive it can reach — including the USB backup left plugged in. The defenses:
- Disconnect after backup: File History runs on schedule; unplug the drive between runs (or use a NAS with snapshot support).
- Versioned cloud backup (Backblaze, and OneDrive's version history) — the off-site copy is untouchable by anything on your desk.
- Test restore quarterly: a backup that has never been restored is a hypothesis. Pull one file, then one folder, from each copy. Ten minutes, four times a year.
This is the difference between 'we had backups' and 'we recovered.' Every ransomware story you've heard with a sad ending skipped one of these three lines.
Free Tools That Do It Properly
- File History (built-in): the household default — enable it today if you do nothing else in this article.
- Macrium Reflect Free / Clonezilla: full disk images for the 'my drive died, rebuild everything in 30 minutes' scenario. More technical; the complete answer.
- Backblaze Personal Backup: not free (~$99/year) but the honest recommendation for off-site: unlimited, automatic, restores by mail on USB if needed.
- SyncBackFree or FreeFileSync: for mirror-to-NAS/custom-folder workflows with rules.
Skip: trialware backup suites that nag toward purchase, and anything advertising itself as 'PC backup cleaner.' The free tier of backup is genuinely complete in 2026 — this is one category where Windows' built-ins plus one cloud account cover everything.
The 30-Minute Setup (Do It Today)
- Buy/borrow a 2 TB external drive if you don't own one.
- Enable File History onto it (Settings → Backup → Add a drive). Let the first backup run overnight.
- Set a cloud account for the crown jewels: OneDrive/Google Drive for the Documents+Photos folders (free tiers cover essentials; 100 GB is $2/month).
- Calendar a quarterly restore test — one file from the drive, one from the cloud.
- Optional but ideal: Backblaze on the whole machine for the off-site copy done-for-you.
Thirty minutes, roughly the cost of two coffees, and the next drive failure, ransomware hit, or 'the laptop fell in the pool' incident becomes an afternoon instead of a bereavement. There is no cheaper insurance in computing.