Does Windows 11 have a built-in fax program?

Yes — it is called Windows Fax and Scan, but it must be manually installed as an Optional Feature. Go to Settings > Apps > Optional Features, click "View features," search for "fax," and install it. Note that it is not available on ARM-based Windows 11 devices (Surface Laptop 7, Copilot+ PCs).

Can I fax from Windows 11 without a phone line?

Yes. The easiest method is to use an online fax service like [mFax.to](https://mfax.to) — upload your document, enter the recipient's fax number, and send over the internet. No modem, no phone line, no hardware needed. Windows Fax and Scan, by contrast, requires both a USB fax modem and an analog landline.

Where is Windows Fax and Scan in Windows 11?

After installation, search "Windows Fax and Scan" in the Start menu. To install it first, go to Settings > Apps > Optional Features > View features, type "fax" in the search box, and click Install. You can also use Control Panel > Programs > Turn Windows features on or off > Print and Document Services > Windows Fax and Scan.

Does Windows Fax and Scan work over Wi-Fi in Windows 11?

No. Windows Fax and Scan sends faxes over traditional analog phone lines only — it cannot use your Wi-Fi or broadband connection to transmit faxes. For internet-based faxing, use an online service like mFax.to, which works entirely in your browser.

Will my old USB fax modem work on Windows 11?

Most Conexant-based USB fax modems still work. However, Microsoft removed the Agere/Lucent modem driver (ltmdm64.sys) in the October 2025 and January 2026 Windows updates due to a security vulnerability. If your modem stopped working after a recent update, it likely used the affected driver. Replace it with a Conexant-based model or switch to an online fax service.

How to Fax from Windows 11: Built-in & Online Methods

You can fax from Windows 11 in four ways: an online fax service, the built-in Windows Fax and Scan app (installed as an optional feature), email-to-fax from Outlook, or a networked all-in-one printer. This guide covers every method — no phone line required for the modern options.

Frequently Asked Questions

Does Windows 11 have a built-in fax program?: Yes — it is called Windows Fax and Scan, but it must be manually installed as an Optional Feature. Go to Settings > Apps > Optional Features, click "View features," search for "fax," and install it. Note that it is not available on ARM-based Windows 11 devices (Surface Laptop 7, Copilot+ PCs).
Can I fax from Windows 11 without a phone line?: Yes. The easiest method is to use an online fax service like [mFax.to](https://mfax.to) — upload your document, enter the recipient's fax number, and send over the internet. No modem, no phone line, no hardware needed. Windows Fax and Scan, by contrast, requires both a USB fax modem and an analog landline.
Where is Windows Fax and Scan in Windows 11?: After installation, search "Windows Fax and Scan" in the Start menu. To install it first, go to Settings > Apps > Optional Features > View features, type "fax" in the search box, and click Install. You can also use Control Panel > Programs > Turn Windows features on or off > Print and Document Services > Windows Fax and Scan.
Does Windows Fax and Scan work over Wi-Fi in Windows 11?: No. Windows Fax and Scan sends faxes over traditional analog phone lines only — it cannot use your Wi-Fi or broadband connection to transmit faxes. For internet-based faxing, use an online service like mFax.to, which works entirely in your browser.
Will my old USB fax modem work on Windows 11?: Most Conexant-based USB fax modems still work. However, Microsoft removed the Agere/Lucent modem driver (ltmdm64.sys) in the October 2025 and January 2026 Windows updates due to a security vulnerability. If your modem stopped working after a recent update, it likely used the affected driver. Replace it with a Conexant-based model or switch to an online fax service.