Windows · Data Security

File backup: the simple guide to never losing important data again

Edson Feitosa de Oliveira Junior
Edson Feitosa de Oliveira Junior Founder & Lead Engineer · PruPru Digital Services

Most people only think about backups after losing something important — a broken hard drive, a stolen laptop, ransomware that encrypted a company's files. Backup isn't about "if" something will go wrong, it's about being ready when it does.

The 3-2-1 rule, in practice

It's the most widely used standard worldwide: 3 copies of your data (the original plus 2 backups), on 2 different types of media (external drive plus cloud, for example), with 1 of them off-site (to survive fire, theft, or flooding).

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The most common mistake: a backup nobody tests

A backup that's never been restored is a bet, not a guarantee. At least twice a year, try restoring a test file from your backup to confirm it actually works when needed.

For small businesses: backup isn't optional

Losing your customer database, invoices, or financial spreadsheets can mean months of lost work. If your business still depends solely on one computer's disk, that's the first thing worth fixing.

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We help small businesses set up automatic backups and reliable systems, without leaving it to luck.

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