Fast desktop search did not make folders obsolete. Most people still reach their own files by clicking through folders, and they search mainly when they have forgotten where something lives. So the answer to how to organize computer files is a folder structure you can find your way around without thinking: shallow, built around your work, with finished material moved out of the way and search kept as the safety net. Six steps put the research in order:

1. Set up a few top-level folders for the main areas of your work and life
2. Give every live project one folder
3. Keep the tree shallow
4. Move finished work to an archive
5. Name files the way you would search for them
6. Back up the whole tree automatically

When the clutter reaches well beyond the laptop, the four-step routine for getting organized is the better place to begin.

Why folders still matter when search is fast

Folders matter because people find their own files mostly by retracing where they put them, not by typing a query. In two studies published in 2008, Ofer Bergman and colleagues found that people estimated 56 to 68 percent of their file retrievals were by navigating folders and only 4 to 15 percent by search, whichever desktop search engine they used. Search was mainly a last resort for files whose location people could not remember, and the authors found no evidence that better search engines made people rely less on folders.¹

Logs of what people actually did point the same way as their estimates: a later log study by Stephen Fitchett and Andy Cockburn found search just as rare, a 2021 paper by Bergman, Tamar Israeli and Yael Benn reports.² That matters because the collections are big. Typical ones hold tens of thousands of files, according to a 2019 study of 348 personal collections by Jesse David Dinneen, Charles-Antoine Julien and Ilja Frissen.³

Why does navigation win? Clicking through folders asks you to spell out less of what you want, and the folders you pass on the way remind you what else you have, a 2020 review of more than 230 file management publications by Dinneen and Julien explains. People in some of the studies it covers also found desktop search tools complicated and their results too numerous and poorly ranked.⁴ Brain-imaging work from Bergman’s group adds a hint: finding a file in folders draws on the brain areas people use to find their way in physical space, while searching draws on language areas.²

An illustration: you need last spring’s team budget. If you filed it, you open Work, then Budgets, and see it beside the other versions, which reminds you there was a revised one too. Type “budget” into search and you get every file containing the word, from every year, as a list with little context.

Myth

Now that search is fast, folders are a waste of time.

Fact

In Bergman's 2008 studies, better search engines changed little: people still said they reached most files through folders and searched mainly when they forgot where something was.

Not everyone works this way. In the 2021 study, a small preliminary one, a group the authors call hyper-searchers estimated that they used search for about half of their retrievals, and they tended to have better verbal memory.² In a 2019 study of people retrieving their shared files, participants over 50 searched several times as much as those in their twenties, possibly, the authors suggest, because older users forget where files are.⁵

If you already search for nearly everything, put more effort into file names (step 5) than into the shape of the tree.

How to organize computer files: the six-step structure

Steps 2 and 4 follow design principles from Bergman and Whittaker’s research, step 3 the navigation studies and step 6 government guidance; where a step is our own reasoning, it says so.

1. Set up a few top-level folders for the main areas of your work and life

Start with a handful of folders for the lasting parts of your life, such as Work, Home and Archive, inside Documents or the cloud drive you already use. Some people already keep active files in the system’s default folders, such as Documents and the desktop, the 2020 review notes, so building there works with an existing habit.⁴ No study we found has tested how many top-level folders to have; our suggestion is few enough to see without scrolling.

A worked example: Documents holds Work, Home and Archive. Work holds one folder per current project, such as “Q3 board report” and “New starter guide”. Home holds “Taxes” and “Kitchen renovation”. Anything you open this week sits two or three clicks from the top.

For a ready-made version, the PARA scheme described in our guide to Building a Second Brain sorts folders into projects, areas, resources and archives; these steps work with it or without it.

2. Give every live project one folder

A project folder gathers everything one piece of work needs, whatever the file type. In their 2016 book The Science of Managing Our Digital Stuff, Bergman and Whittaker report a study showing that people think of their information as projects, and they note that storing emails and web favorites in hierarchies separate from files splits one project across several places. Their principle is to store items from the same project together.⁶

So the kitchen renovation gets one folder holding the quotes, the floor plan and the photos of tiles. Where the email program cannot store messages there, give its folder or label the same name, so every place you look uses the same word.

Tags are not an easy way out of choosing a folder. In a 2013 study, people offered both options strongly preferred folders, usually gave an item a single tag when they did tag, and in a controlled task found files more slowly and less successfully with tags.⁷

3. Keep the tree shallow

Stay close to the depth most people settle on: a few levels from top-level area to file, as the next section shows.⁸ If you click through folder after folder each day to reach a live project, move it up a level. Don’t count on shortcuts to patch a deep tree: the 2020 review found that users seldom rely on aliases, shortcuts or links.⁴

The same goes for unfiled piles. The review describes people dumping files, on the desktop for example, when they are unsure where to put them, have no time to file them or want them close at hand.⁴ Emptying the desktop and the Downloads folder into the tree once a week, our suggestion, keeps them from becoming the one giant folder.

4. Move finished work to an archive

When a project ends, move its whole folder into Archive, inner structure and all. Bergman and Whittaker describe the bind: deciding what to keep means predicting future needs, so people overkeep, and low-value files make valuable ones harder to find. Their answer is demotion: make less important items less visible while keeping them in their original context.⁶ An Archive folder that keeps each project’s folder intact is our way of applying that on an ordinary computer.

An Archive folder keeps old work out of your way without the risk of deleting it.

It also fits how people search. People tend to fall back on search when a folder structure has become unfamiliar over time, the 2020 review notes, so let old work drift out of your daily view and search the archive when you need something from it.⁴

In practice: each January, move last year’s finished client folders into Archive. The Work folder shrinks back to what is live, and last year’s contract is still one search away. An Archive folder keeps old work out of your way without the risk of deleting it.

5. Name files the way you would search for them

A good name helps on both routes, browsing and search. Descriptive names help people find and understand files, but duplicate names are common and make retrieval harder by either route, the 2020 review found; one study it cites found people naming files after the document itself, its purpose, a project or a date.⁴ A simple pattern of project, content and date, with the date written year first so files sort in order, covers most cases; that pattern is our suggestion. A full naming convention deserves a guide of its own.

6. Back up the whole tree automatically

Back up the whole structure, not only the files that feel important today. The UK’s National Cyber Security Centre (NCSC) advises backing up anything that would inconvenience you if you could no longer reach it. It notes that automatic cloud backups make a recent copy more likely, and it says to disconnect an external drive when it is not in use, because ransomware can spread to attached drives.⁹ A 2012 guide written for US-CERT, the US government’s computer emergency team, adds the 3-2-1 rule: three copies, on two kinds of media, with one kept offsite.¹⁰ A folder structure lasts only as long as a copy of it does.

WiserHours

Set up your folder structure

• Create a handful of top-level folders for the main areas of my life
• Make one folder for each live project
• Use the same project name for its email folder and bookmarks
• Move any live project that sits too deep up a level
• Create an Archive folder and move finished projects into it
• Empty the desktop and Downloads into the tree each week
• Rename the files I use most: project, content, date
• Turn on automatic backup for the whole structure

Find this checklist online:
https://wiserhours.com/organization/organize-computer-files/#checklist-organize-computer-files-setup

How deep should your folders go? A few levels, with modest folders

In a 2010 study of 296 people retrieving their own active files, the folder structures were shallow and the folders small, and the researchers judged that habit sensible. Bergman, Steve Whittaker and colleagues found that both how quickly and how reliably people found a file depended on its folder’s depth and size, so avoiding both deep trees and large folders was, in their word, adaptive.⁸

The study

Moderate evidence

What 5,035 navigation steps revealed about folder depth

Participants retrieved files they were currently using while the researchers analyzed all 5,035 navigation steps. Files were retrieved from a mean depth of 2.86 folders, in folders holding a mean of 11.82 files. People found 94% of their files, taking 14.76 seconds on average. Retrieval time and success depended on folder depth and folder size, and the authors used a model of the trade-off between the two to suggest an optimal point.⁸

The authors frame depth and folder size as a trade-off. In everyday terms, as we read it, every extra level is one more decision and click on the way down, and every extra file makes a folder slower to scan once you arrive. The study observed people’s own set-ups, not randomly assigned ones, so it describes what goes with quick, successful retrieval, not what causes it, and our reading rests on its abstract alone.

Whole collections look different from the folders people use each day. The 2019 study counted the files people kept in every place they managed, including the desktop, Downloads and, where people chose, backup drives, and found that most folders held only a few files while a few folders held most of them; empty folders were common too.³ On our reading, that is the shape of a structure that grew by accident: a folder for every passing idea, and a handful of dumping grounds that take everything else.

1. Too flat: everything in one folder: nothing to click through, but a long list to scan every time
2. Too deep: small folders nested many levels down: a decision and a click at every level
3. In between: a few levels of modest folders; in a 2010 study, how quickly and reliably people found files depended on folder depth and size, and their habit of avoiding deep trees and large folders was judged adaptive

A rule of thumb, ours rather than the study’s: when you find yourself scrolling through a folder to find something, split it; when a subfolder holds a single file, fold it back into its parent.

The first is a candidate to split, the second a level you can probably remove.

What the file research shows, and where it stops

The research is strongest on how people find their files and weakest on which structure is best. Most studies are observationalobservational study: A study in which researchers record what people already do or are exposed to, rather than assigning anyone to anything. It can show that two things go together, not that one causes the other, because the groups being compared may differ in other ways as well.Full entry in the glossary, watching people’s own habits or asking them to estimate, and no trial we found has assigned people to different folder schemes and compared the results.

Cloud drives and syncing have likely changed how people store files, but exactly how is still being investigated, the 2020 review notes.⁴ The practical upshot: use the six steps as a first draft, then notice where you actually look for things. If you keep resorting to search in one area, that area’s folders or names need work.

The bottom line

Build your folders for the way you will look for things, because that is how most people find their files: a few top-level areas, a folder for every project in progress, a shallow tree and an archive for finished work. Name files so that search can rescue you, and back up the whole structure automatically. If you do one thing today, move every finished project out of your working folders and into an Archive.