Windows 11 InstallSource: Daniel Rubino / Windows Central

What you need to know

  • Windows 11 build 22000.176 in the Beta Channel has a serious "known" bug.
  • The bug causing the Start menu and taskmanager to disappear upon rebooting.
  • While the issue is known, it seems to be very widespread.
  • One fix is to disable the syncing of time and date in Control Panel. Here's how to do it.

Update #2 September 3: A new report suggests a pop-up for Microsoft Teams may have caused the problem, not the Insider builds themselves.

Update #1 September 2: Microsoft has published its own fix, which requires modification of the registry. The info is re-posted below.

There are known issues, and then there's one helluva known issue. Turns out, today's Windows 11 Beta Channel release (build 22000.176) is wreaking havoc on many more PCs than previously.

The issue is simple. You restart your PC and are greeted with a barren desktop. No Start menu, no taskbar. You can still run apps from the Taskmanager, and if you're fluent in CMD can get a lot done. But for most users, this is nothing short of a nightmare.

The issue is listed in the release notes, and states:

We're investigating reports from Insiders in the Beta Channel where after upgrading to Windows 11, they are not seeing the new Taskbar and the Start menu doesn't work. To workaround this if you are impacted, please try going to Windows Update > Update history, uninstalling the latest cumulative update for Windows, and the reinstall it by checking for updates.

While this is a known issue, going by Reddit tonight, it's a widespread one, not just a few random computers. In one thread, there are over 200 comments so far from people all hit with the same problem. Indeed, our own top-tier Core i9 desktop PC has suffered the same fate (but not our other three laptops).

The workaround from Microsoft seems simple enough: roll back the update either through the OS or through Windows Recovery. But users, including ourselves, find that either uninstalling the latest updates or going back to an earlier Restore Point does not fix the problem.

As a result, many people are stuck tonight.

Official solution is here

Microsoft updated its own blog with the following information:

UPDATE 7:10PM PDT: Recently, Windows Insiders in both the Dev and Beta Channels began reporting that Start and Taskbar were unresponsive and Settings and other areas of the OS wouldn't load. We quickly discovered an issue with a server-side deployment that went out to Insiders and canceled that deployment. If you were impacted by this issue, you can use the following steps to get back into a working state on your PC.

  1. Use CTRL-ALT-DEL and choose to open Task Manager.
  2. Choose "More details" at the bottom of Task Manager to expand Task Manager.
  3. Go to "File" and choose "Run new task".
  4. Type "cmd" in the "Open" field.
  5. Paste the following: reg delete HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\IrisService /f && shutdown -r -t 0 Regdelete
  6. Hit enter, and then your PC should reboot. After rebooting, everything should be back to normal.

Others are reporting that an official update is coming through Windows Update, but we have not seen it yet on our devices.

Temp solution? Don't sync the Time and Date.

Note: The methods below are now outdated. You can still do them, but using the above method is easier and what Microsoft recommends.

The easiest way to do get your PC back is by disabling the system clock from synching to the internet.

Here's how:

  1. Press Ctrl-Alt-Del
  2. Select TaskManager
  3. Select More details
  4. Select File > Run new task
  5. Type control.exe Control
  6. In Control Panel, navigate to Clock and Region Control
  7. Choose Set the time and date Control
  8. Under Internet Time go to Change settings and uncheck Synchronize with an Internet time server Control
  9. Go back to Date and Time tab and select Change date and timezone Control
  10. Set the calendar to a few days ahead of the current date and hit OK
  11. Restart the PC

After rebooting, if everything is working, it appears you can set the time and date back manually and still be OK after another reboot. If not, you now know how to fix it!

Thanks, Daniel C. and MofLevi, for this tip!

Another method is found below, although you don't need to do both. This method creates a new user account and starts anew.

Here's how to do it:

  1. Press Ctrl-Alt-Del
  2. Select TaskManager
  3. Select More details
  4. Select File > Run new task
  5. Type in CMD with Create this task with administrative privileges enabled
  6. At the command prompt, type: net user username password /ADD replacing "username" and "password" with your choice, e.g., net user Bill 12345 /ADD. Hit Enter. CMD Prompt
  7. We then need to give that account administrative level access. At the command prompt, type: net localgroup administrators username /ADD replacing "username" with the account name chosen in step 6 above and hitting Enter. CMD prompt 2
  8. Press Ctrl-Alt-Del again
  9. Choose Switch users and log into the new account

Following these steps will re-launch the out-of-box experience and get you back into Windows 11 with the Start menu and taskbar. However, it's a new account, so all your old apps will need to be re-setup.

Your old, original account is still present, and nothing has changed. Once Microsoft pushed out an update, you can go back to the original account and delete this newly created temp, local account.

Let us know if it has worked for you, or if you have found another solution in comments!

Thanks for the tip, Paul K.!