Do Not Disturb does what you asked. It stops the banners, keeps the sound quiet, and lets you finish something. Then you turn it off, and Windows says nothing at all about the two hours it just covered for you.

Where the silenced notifications went

They are not discarded. During Do Not Disturb, Windows skips the banner and the sound and files the notification in the notification centre. Open it with Win + N, or by clicking the date and time in the taskbar.

Two exceptions. Anything on your priority list showed a banner as usual, so you have already seen it; that list is under Settings → System → Notifications → Set priority notifications, and it also covers calls and reminders. Alarms always sound regardless.

Windows 10 told you. Windows 11 does not.

Windows 10 called this Focus Assist, and it had a setting to show a summary of what you missed while it was on. Turn focus assist off and a single notification arrived listing what had been held.

Windows 11 renamed the feature to Do not disturb, added Focus sessions, and its settings offer no equivalent. Notifications that arrive during Do Not Disturb go straight to the notification centre without a banner, without a sound, and without anything marking them out from what was already there.

So the answer to "what did I miss" is: open the notification centre and read it, and hope it is still there.

Why the list is shorter than the time you were away

Windows keeps three notifications per app. Settings → System → Notifications, click an app to expand it, and there is Number of notifications visible in notification center: 1, 3, 5, 10 or 20, and it starts at 3. The fourth notification from that app pushes the first one out for good.

Do Not Disturb makes this much worse, because the whole point is that you were away for a while. Two hours of a busy channel produces far more than three notifications, and you will find the last three.

Raise it to 20 for the apps that carry work:

  1. 1. Settings → System → Notifications
  2. 2. Click the app name to expand it
  3. 3. Set Number of notifications visible in notification center to 20

And it empties on restart. Notifications do not survive a reboot, so a focus block that spans one leaves nothing behind.

The rules that turn it on without being asked

Settings → System → Notifications → Turn on do not disturb automatically holds a list most people have never opened:

  • during hours you set
  • when duplicating your display, which covers presenting and plugging into a projector
  • when playing a game
  • when using an app in full screen
  • for the first hour after a Windows feature update

None of them tells you afterwards what it held. The full-screen rule surprises people most: watching a video or running anything maximised silences your notifications, and the only trace is whatever survived the three-item limit. The feature-update rule is the other one worth knowing, because it fires on a day when the machine is already behaving unusually and the update gets the blame for the silence.

Focus sessions do the same thing

Focus, in the Clock app or under Settings → System → Focus, starts a timed session that turns on Do Not Disturb for its duration, hides taskbar badges and shows a timer. When the session ends, Do Not Disturb ends with it. Same consequence: silenced, filed, uncounted. If you run focus sessions daily, you are running this several times a day.

Catching up, quickest first

  1. 1. Win + N for the notification centre, subject to the limit above.
  2. 2. The app's own activity list — Teams Activity, Slack Activity, Outlook's unread. These are not capped by Windows and hold much more, though in the chat tools they cover mentions and replies rather than everything.
  3. 3. Email digests. Teams and Slack both send "you missed something" mail after a period of inactivity.

There is no Windows-level list of what was suppressed.

Keeping the record instead

Windows treats a notification as a transient interruption. Once the interruption is suppressed, which is exactly what you asked for, nothing is designed to preserve it.

A notification log inverts that. It receives each notification as it arrives, including the ones Do Not Disturb silenced, and writes it to a local database with its app, its content and its arrival time. Do Not Disturb changes whether you are interrupted; it does not change whether the notification happened.

Notification Logger does this on Windows 10 and 11, with a history you can search and filter by app and date, and it is subject to neither the three-per-app limit nor the reboot. Two limits worth knowing: it shows nothing from before it was installed, and if an app's notifications are switched off in Windows settings there was no notification to record.

Settings worth changing today

  • Raise Number of notifications visible in notification center to 20 for the apps that alert you about work or about systems.
  • Review Set priority notifications so the genuinely urgent break through rather than being found later.
  • Check Turn on do not disturb automatically and switch off the full-screen rule if you did not want it.
  • Stop using Clear all. After a focus block it is the difference between catching up and not.

Frequently asked questions

Does Do Not Disturb delete notifications?
No. It suppresses the banner and the sound, and the notification goes to the notification centre. What removes it afterwards is the per-app limit, Clear all, or a restart.
Can I see a list of everything that was silenced?
Not from Windows. Windows 10's Focus Assist could show a summary; the Windows 11 settings offer no equivalent. The notification centre is the only built-in place to look, and it holds a small number of items per app.
What is the difference between Do Not Disturb and Focus?
Do Not Disturb is the state that suppresses notifications. Focus is a timed session that turns Do Not Disturb on for its duration and adds a timer and taskbar quieting.
Why did Do Not Disturb turn itself on?
Almost certainly one of the automatic rules, most often full-screen mode or duplicating your display. They are listed under Settings → System → Notifications → Turn on do not disturb automatically.
Do notifications during Do Not Disturb still make a sound?
No, except for alarms and anything you have set as a priority notification.
I missed something important during a focus session. How do I stop that happening again?
Add the app to Set priority notifications so it breaks through, and raise the per-app count so the ones that do not break through are still there when you come back.
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