# How to transfer files from a Mac to a Windows PC

Source: https://help.strongfolder.com/en/guides/mac-to-windows-file-transfer/
Updated: 2026-11-05

> To transfer files from Mac to Windows, send them from the Mac's browser with a direct StrongFolder link (folders stay intact, no upload), share a folder over the network with SMB, or use an exFAT drive. Before sending, rename files with characters Windows forbids — < > : " / \ | ? * — and shorten very long paths.

1. **Open StrongFolder on the Mac** — Go to [strongfolder.com](https://strongfolder.com) on the Mac — Chrome works best, other modern browsers work too.
2. **Choose the folder or files** — Pick the folder to send. Nothing is uploaded — the browser only reads the names and sizes.
3. **Open the link on the Windows PC** — Send the link to the PC (chat, e-mail) and open it in Chrome or Edge. Choose where to save; the same folder tree is created there.
4. **Keep the Mac awake** — Keep the StrongFolder tab open and the Mac plugged in and awake until the PC finishes.

Moving files from a Mac to a Windows PC is easy once you pick the right method — and
annoying if a few file names quietly break on the way. This guide compares six ways to
transfer files from Mac to Windows, explains which fits which situation, and lists the file
name, path length and format issues to fix before you send.

**Key facts**

- **One-off, any size, no setup:** send from the Mac's browser with StrongFolder; open the link on the PC in Chrome or Edge — the folder arrives with its structure.
- **Same network, regular access:** turn on **SMB** file sharing in macOS and open `\\<Mac IP>` in File Explorer.
- **Offline or terabytes:** an **exFAT** drive works read/write on both systems.
- **Fix names first:** Windows forbids `< > : " / \ | ? *`, trailing spaces and periods, and names like CON or NUL.
- **Paths:** keep full paths under about 260 characters.

## What are the ways to transfer files from Mac to Windows?

| Method | Setup | Network | Size limit | Folder structure | Best for |
|---|---|---|---|---|---|
| **StrongFolder (browser link)** | None | Same Wi-Fi or internet | None set by the service | **Kept** (Chrome/Edge on the PC) | One-off transfers, large folders, remote PCs |
| SMB file sharing | ~5 min, Mac account | Same local network | Disk space | Kept | Regular access at home or office |
| External drive (exFAT) | Format drive once | None | Drive size | Kept | Terabytes, no network |
| Cloud drive (iCloud, OneDrive, Google Drive, Dropbox) | Account, app | Internet | Storage quota | Kept online; ZIP on web download | Ongoing sync between both computers |
| LocalSend | App on both | Same local network | — | Check the app | Mixed devices at home |
| E-mail | None | Internet | ~20–25 MB | No | A few small documents |

Cloud quotas change; check the provider's current plan (as of 2026-11-05).

## How do I send files from Mac to Windows with a browser link?

This is the quickest way when the PC is in another room, another office or another country,
and it needs nothing installed on either side. The steps are above: choose the folder on the
Mac, open the link on the PC, pick a destination.

What happens: the two browsers connect directly over an encrypted
[WebRTC](https://help.strongfolder.com/en/guides/how-webrtc-file-transfer-works/) connection and the files stream from the
Mac's disk to the PC's disk. Files are never uploaded to or stored on a StrongFolder server. Folders are sent as folders: subfolders and file names are kept, nothing is zipped.

Two things to know:

- **On the PC use Chrome or Edge** to save the whole folder with its structure.
  Saving a whole folder with its structure uses the File System Access API: Chrome, Edge, Opera and other Chromium browsers on a computer. Other browsers can download the files one by one or as a ZIP.
- **Keep the Mac awake.** The sender's browser tab must stay open and online until the recipient finishes downloading — files come from the sender's device, not from a server. See
  [Why the sender stays online](https://help.strongfolder.com/en/guides/why-sender-stays-online/).


Windows limits path length. If a file's full path would be too long to store on the PC,
StrongFolder shortens the name and adds a small text file listing every renamed file, so
nothing is lost silently.

[Send files now](https://strongfolder.com)
## How do I share a Mac folder with Windows over the network (SMB)?

If both computers are on the same network and you will move files regularly, macOS File
Sharing is built in:

1. On the Mac, open **Apple menu → System Settings → General → Sharing**.
2. Turn on **File Sharing**, click the **Info (i)** button next to it, then **Options**.
3. Turn on **Share files and folders using SMB** and, under **Windows File Sharing**, tick
   the Mac account Windows will use; enter its password.
4. Note the address shown under *File Sharing: On* (it starts with `smb://`).
5. On the PC, open **File Explorer** and type `\\` followed by the Mac's IP address, e.g.
   `\\192.168.1.25`, then sign in with the Mac user name and password.

Apple notes that passwords for Windows sharing accounts may be stored less securely, so turn
the account off when you don't need it. Menu names can differ slightly between macOS
versions.

## Which external drive format works on Mac and Windows?

| Format | Mac | Windows | Files over 4 GB | Use it? |
|---|---|---|---|---|
| **exFAT** | Read/write | Read/write | Yes | **Yes — best for sharing** |
| FAT32 | Read/write | Read/write | **No** (4 GB max per file) | Only for small files |
| NTFS | Read only (by default) | Read/write | Yes | Windows-only drives |
| APFS / Mac OS Extended | Read/write | Not readable without extra software | Yes | Mac-only drives |

Format the drive as exFAT in **Disk Utility** (this erases it). macOS writes hidden helper
files such as `.DS_Store` and `._filename` to non-Mac drives; Windows shows them if hidden
files are visible, and they are safe to delete.

## Which file names break when moving from Mac to Windows?

macOS accepts almost any character in a name; Windows doesn't. Microsoft's naming rules
forbid:

- **Characters** `< > : " / \ | ? *` (on a Mac, a `/` typed in Finder is stored as `:`);
- names that **end with a space or a period**;
- **reserved names** CON, PRN, AUX, NUL, COM1–COM9 and LPT1–LPT9 — also with an
  extension, so `nul.txt` is invalid too;
- **control characters** (rare, but some downloaded files have them).

To find problem names on the Mac before sending, open Terminal in the folder and run:

```
find . -name '*[<>:"|?*\\]*' -o -name '* ' -o -name '*.'
```

Rename what it lists. Two more differences to keep in mind:

- **Case.** Both systems are case-insensitive by default, so `Photo.jpg` and `photo.jpg`
  can't sit in the same folder on either — but a case-sensitive Mac volume allows it.
- **Accented letters.** macOS may store letters such as "é" in a decomposed Unicode form.
  Most tools convert this correctly; if a sync tool shows duplicate-looking names, that's
  the reason.

## What is the Windows path length limit?

Historically, a full Windows path — drive, all folders and the file name — was limited to
**260 characters** (MAX_PATH). Since Windows 10 version 1607 the limit can be lifted through
a registry or Group Policy setting, but many applications still assume it. Deep Mac project
folders with long names can exceed it. Before sending, shorten long folder names near the
top of the tree, or tell the recipient to save into a short path such as `D:\Projects`.

## What about Mac-specific file formats?

- **Pages, Numbers, Keynote** — export to Word, Excel or PowerPoint (File → Export To), or
  to PDF.
- **HEIC photos and HEVC video** from iPhone — Windows may need Microsoft's HEIF/HEVC
  extensions from the Microsoft Store; or export to JPEG/H.264 on the Mac.
- **Aliases and symlinks** don't carry over meaningfully; send the original files.
- **Apps (.app)** don't run on Windows.

## Which method should I choose?

- **One project folder to a PC anywhere** → [StrongFolder](https://help.strongfolder.com/en/guides/send-folder-without-zipping/).
- **Both computers on your home network, recurring transfers** → SMB file sharing.
- **Hundreds of gigabytes, slow internet** → exFAT drive.
- **The same files on both computers every day** → a cloud drive with apps on both.
- **Phones in the mix** → see [AirDrop alternatives for Windows & Android](https://help.strongfolder.com/en/guides/airdrop-alternative-windows-android/).

## Summary

To transfer files from Mac to Windows, use a browser link for one-off transfers of any
size, SMB for recurring transfers on the same network, and an exFAT drive when there's no
network. Whatever you choose, fix forbidden characters and very long paths first. For more
on big transfers, read [How to send large files](https://help.strongfolder.com/en/guides/send-large-files/).

## FAQ

### What is the easiest way to transfer files from Mac to Windows?

For a one-off transfer, a browser link: open StrongFolder on the Mac, choose the folder and open the link on the PC in Chrome or Edge. It works on the same Wi-Fi or across the internet, keeps the folder structure and needs no setup. For regular access to the same folder, set up SMB file sharing.

### Which drive format works on both Mac and Windows?

exFAT. Both macOS and Windows can read and write it without extra software, and it supports files larger than 4 GB. APFS and Mac OS Extended aren't readable by Windows out of the box, and macOS reads NTFS but doesn't write to it by default.

### Why can't Windows open some files from my Mac?

Usually the name, not the file. Windows forbids < > : " / \ | ? * in names, names ending in a space or a period, and names such as CON, PRN, AUX or NUL. Rename those files on the Mac before sending.

### What is the Windows path length limit?

Traditionally 260 characters (MAX_PATH) for the full path. Windows 10 version 1607 and later can lift it through a registry or Group Policy setting, but many apps still expect the old limit. Keep deep folder trees short.

### Can Windows open Pages, Numbers or Keynote files?

Not in Microsoft Office. Export them on the Mac (File → Export To → Word, Excel or PowerPoint) or as PDF before sending.

### Do I need the same Wi-Fi to send files from Mac to Windows?

For SMB file sharing, yes — both computers must be on the same network. StrongFolder works on the same Wi-Fi or across the internet.