A Backup Plan for a Laptop
A backup that has never been restored is a hope, not a backup. Automate it, then test it once.
Follow the 3-2-1 rule: three copies, on two types of media, with one offsite. Use an external drive for the local backup and a cloud service for the offsite copy. A vague complaint like slow or broken sends people to the shop; a measured symptom sends them to the setting.
Describe the actual problem
Automate the backup so it does not depend on remembering. Back up the documents, photos, and project files that cannot be recreated. Most home technology problems are configuration problems, and configuration is free to change.
Try the free fix first
Exclude temporary files and caches to keep the backup fast. Encrypt the external drive in case it is lost. Changing several settings at once hides the cause and makes the next problem harder to solve.
Before changing a setting, describe what you expected and what actually happened. Most home technology problems are configuration issues, and a specific symptom points to a specific setting. Change one thing at a time, test it, and note the result, because several changes at once hide the cause. Keep the manual and the model number in one place so the next problem is faster to solve. A note of the model number, the current settings, and the date of the last change turns a frustrating afternoon into a five-minute fix. If a device has no manual, save the support page offline. The goal is not to memorise the system but to leave a trail that makes the next visit easier.
Keep the external drive disconnected between backups to reduce ransomware risk. Keep a short note of what you changed and when, because the same fault usually returns.
Check these first
- Three copies of the data
- One copy offsite
- Automate the schedule
- Test a restore
Change one thing at a time
Test a restore of a few files before you need the backup. Check the backup status weekly rather than assuming it ran. Buy hardware only when the free options have been tested and written down.
Keep the cloud account protected with two-factor authentication. Store a copy of the recovery key offline.
Write down what worked
Version the backup so an accidental deletion does not propagate. Replace the external drive every few years. A five-minute monthly check prevents most of the failures people describe as sudden.
If the first fix does not work, undo it before trying the next one. Stacked changes make a simple fault look complicated and cost more time than starting again. Write down what you changed, when, and what happened, so a returning fault is quicker to identify. Replace hardware only after the free options have been tested and recorded, not because the device feels old.
Back up before any major system update. Document the restore steps in case someone else needs to do it. A tested restore is the only proof that the backup works. If you want the wider picture, read Choosing a Home Router for Your Flat before you decide.
For the underlying guidance, see the FCC home network guidance.
Frequently Asked Questions
What is the 3-2-1 backup rule?
Three copies of the data, on two different media, with one copy offsite.
Do I need both an external drive and cloud backup?
Ideally yes. The drive is fast and local; the cloud covers theft, fire, and loss.
How often should I back up?
Automatically, at least daily for important files. More often for active projects.
How do I test a backup?
Restore a few files to a different folder and open them. If they open, the backup works.