Clean Out Your Computer Day

What the day is

Clean Out Your Computer Day is observed on February 8. It is generally kept on the second Monday of February, so the date shifts. The instruction is usually taken as deleting old files, which is the least valuable thing on the list.

Origin and background

Storage is cheap and rarely the constraint it once was. What people actually lose is not space but data, and the reason is almost always the same: a backup that existed in principle and had never been tested.

The standard guidance is worth knowing because it is simple and rarely followed. Keep three copies of anything you care about, on two different kinds of storage, with one of them somewhere else. The off-site copy is the part that covers fire, flood and theft, and a second drive sitting beside the first covers none of those. Cloud sync is not by itself a backup either, because deletion and corruption sync too, and ransomware encrypts whatever it can reach.

The test is the thing nobody does. A backup you have never restored from is a hypothesis, and people discover the drive was failing, the folder was excluded, or the encryption key is gone at the exact moment they need it. Restoring one file takes two minutes and converts the hypothesis into a fact.

The physical clean matters more than it sounds. Dust blocks airflow, fans work harder, components run hot, and heat is what shortens the life of electronics. A laptop that has become loud and slow is frequently throttling because it cannot shed heat.

Deleting unneeded files still has one real benefit: reducing what an attacker or a thief would get.

How to take part

• Restore one file from your backup. If you do nothing else, do this.
• Check that a copy exists somewhere other than your home.
• Blow the dust out of the vents and fans.
• Apply pending updates while you are in there.
• Delete old documents containing financial or personal details you no longer need.