September 22, 2026—KB5124006 (OS Build 28000.3086) Preview
This cumulative update for Windows 11, version 26H1 (KB5124006), includes production-quality improvements. Announcements and messages This section provides key notifications related to this release, including announcements, change logs, and end-of-support notices. Change log
Troubleshooting blank screens in Windows | Microsoft Support
If your computer is showing a black or blank screen in Windows, these troubleshooting tips could help get your system back up and running.
Microsoft Rewards Streak protection | Microsoft Support
Microsoft Rewards Streak protection What is Streak protection? Streak protection protects your Microsoft Rewards streak when you’re unable to do the daily tasks, for example, when you’re on vacation. How does Streak protection work? You start with 14 days that can be used to protect your streak. If you miss a daily task while streak protection is active, the system will instead use one of ...
Triage email with Microsoft Copilot in Outlook
Learn how to use natural language commands in Microsoft Copilot Chat to organize and manage email in Outlook.
Reinstall Windows with the installation media | Microsoft Support
The installation media for Windows is a versatile tool that serves multiple purposes, including in-place installations for recovery and new installations. This media, typically created on a USB drive or DVD, contains all the necessary files to install or reinstall Windows on your device. It is particularly useful in scenarios where your system encounters significant issues, such as software ...
Installa gli aggiornamenti di Windows | Microsoft Support
Argomenti correlati a Windows Update Se viene visualizzato un errore durante il tentativo di aggiornamento o se si verificano problemi durante l'installazione degli aggiornamenti, vedi Risoluzione dei problemi di aggiornamento di Windows. Se Windows Update ti avvisa che non hai spazio sufficiente nel dispositivo per installare gli aggiornamenti, vedi Liberare spazio per gli aggiornamenti di ...
Uninstall Skype for Business | Microsoft Support
Windows Mac Step 1: Stop Skype for Business from starting automatically In Skype for Business, choose the tools icon and Tools > Options. Choose Personal, then uncheck Automatically start the app when I log on to Windows and Start the app in the foreground. Then choose OK. Choose File > Exit. Skype for Business is still on your computer, but you'll no longer see it. Step 2: Remove Skype for ...
Applies To: Office 365 Small Business, Skype for Business, Skype for Business for Mac
TODAY function | Microsoft Support
This article describes the formula syntax and usage of the TODAY function in Microsoft Excel. Description The TODAY function returns the serial number of the current date. The serial number is the date-time code used by Excel for date and time calculations. If the cell format was General before the function was entered, Excel changes the cell format to Date. If you want to view the serial ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2024, Excel 2024 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2016
Установка обновлений Windows | Microsoft Support
Связанные разделы Центра обновления Windows Если при попытке обновления возникает ошибка или у вас возникают проблемы с установкой обновлений, см. раздел "Устранение неполадок при обновлении Windows ". Если появляется ...
Como alterar o nome da sua conta de usuário | Microsoft Support
O nome da conta de utilizador num dispositivo Windows mostra o nome da conta Microsoft ou da conta escolar/profissional com sessão iniciada. Para alterar o utilizador que tem sessão iniciada, selecione o botão Iniciar na barra de tarefas. Em seguida, selecione o nome da conta, ícone ou imagem para ver uma lista de utilizadores para os quais pode mudar. Selecione outro utilizador para mudar.