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Computer Tips

Speed, storage, backups and the maintenance nobody does until it is too late.

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The rule that covers most of them

Back up first, then diagnose, then spend money. In that order, and never the other way round.

Most computers that feel slow are not worn out. They are short of memory, full of things launching at startup, or running a mechanical hard disk in a machine that would be transformed by a solid state one. All three are fixable for far less than a replacement.

What it covers

SpeedBackupsSecurityHardware

Every tip in computers

5001
Why your computer is slow, and what actually fixes it

In order of likelihood: a mechanical hard disk, too little memory, too many startup programs, or a nearly full drive. Replacing the disk with an SSD transforms an old machine more than anything else you can buy.

Speed
5002
How to back up so you would actually survive losing the computer

Three copies of anything you care about, on two different kinds of storage, with one of them somewhere else. A single external drive sitting next to the computer is not a backup against fire, flood or theft.

BackupsThree copies, two places
5003
How to tell a phishing email from a real one

Never click the link in the message. Go to the organisation yourself, by typing the address or using the app you already have, and check from there.

SecurityNever use their link
5004
How to make passwords you do not have to remember

Use a password manager and let it generate a different long random password for every site. Then you only need one strong passphrase, plus two-factor authentication on email and banking.

Security
5005
What to do before you get rid of an old computer

Back up, sign out of everything, deauthorise licensed software, then erase the drive properly. Deleting files and emptying the bin does not remove anything.

Security
5006
How to stop a laptop overheating

Clear the vents, use it on a hard surface, and have the fans and heatsink cleaned of dust once every year or two. Heat is what kills laptops.

Hardware

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