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How to organize photos into year and month folders on Windows

Turn a folder of thousands of unsorted photos into a clean Year → Month structure on Windows. What the built-in tools do, why file dates lie, and how to automate it properly.

Mudry Team6 min read

A phone backup, a camera card, and a decade of screenshots all end up the same way: one enormous folder with names like IMG_20240817_143022.jpg and no structure at all.

The structure almost everyone eventually wants is the same:

Photos/
  2024/
    01 January/
    02 February/
  2025/
    03 March/

It sorts correctly, it is obvious to navigate, and it survives being copied to any other machine or drive. Here is how to get there on Windows, and the one trap that ruins it.

Two different dates, and why it matters

DateWhere it comes fromTrustworthy?
Date taken (EXIF)Written by the camera into the file itselfYes, when present
Date modifiedThe file systemNo — changes on copy, edit, sync
Date createdThe file systemNo — often newer than modified

EXIF "Date taken" travels inside the image, so it survives copying. That is the one you want — when it exists.

It does not always exist. Screenshots have no EXIF. Images saved from a browser usually have none. WhatsApp and many messengers strip it deliberately. For those, the file date is genuinely all there is.

What Windows can do on its own

Photos app — an album, not a folder structure

The Windows Photos app groups your library by date beautifully. It also changes nothing on disk. Your files stay exactly where they are, and the moment you look at the folder outside the app you are back to the same mess.

That is fine if you only ever browse through Photos. It is useless if you want a structure you can back up, hand to someone, or open on another machine.

Group by in File Explorer

Sort → Group by → Date does the same thing at the folder level: a visual grouping that moves nothing and resets when you open the folder somewhere else.

Import from a camera

Plugging in a camera or phone and using Windows' import dialog does create dated folders. It works, and if you are pulling photos off a device it is a perfectly good option.

It does nothing for the twelve thousand files already sitting on your drive, which is the actual problem for most people.

Doing it properly

  1. Work on a copy, at least the first time

    Bulk file moves are reversible in theory and stressful in practice. Copy the folder first, run your sort on the copy, and delete the original once you are happy. This costs disk space for an afternoon and removes all the risk.

  2. Decide the depth before you start

    2024/03 March/ is the sweet spot. Year alone gives you folders with two thousand photos in them. Year/Month/Day gives you hundreds of near-empty folders you have to click through. Two levels is almost always right.

  3. Number your months

    03 March, not March. Without the number, alphabetical sorting gives you April, August, December, February — which is maddening every single time you open the folder.

  4. Sort, then check a sample

    Before deleting the original copy, open three or four month folders and confirm the contents look like that month. This is where you catch a date field that was not what you assumed.

What to do with the undated files

There will be a pile with no reliable date at all — screenshots, saved images, things from messengers.

Do not fight them. Give them one folder called Undated and move on. Trying to reconstruct dates for a few hundred screenshots is hours of work for something you will never search by date anyway.

Automating it

Once the backlog is done, the same structure should apply to everything that arrives afterwards — otherwise you are back here in a year.

That means a watched folder: new images land, get read, and go to the right year and month without you doing anything.

Part of a wider system for organizing files on Windows.

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