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Reactivating Windows after a hardware change - Microsoft Support
In Windows 11, it is essential that you link your Microsoft account with the Windows 11 digital license on your device. Linking your Microsoft account with your digital license allows you to reactivate Windows using the Activation troubleshooter whenever you make a significant hardware change.
Troubleshooting black or blank screens in Windows
For a black screen, use the following keyboard shortcut: Windows logo key + Ctrl + Shift + B.
Firewall & network protection in Windows Security - Microsoft Support
Advanced settings - This will open the classic Windows Defender Firewall tool which lets you create inbound or outbound rules, connection security rules, and see monitoring logs for the firewall. Most people won't want to dig into it that deeply; adding, changing, or deleting rules incorrectly can cause your system to be more vulnerable or can cause some apps not to work.
So verwenden Sie die App PC-Integritätsprüfung
Wenn Sie derzeit Windows 10 verwenden, bietet PC Health Check eine umfassende Eignungsprüfung für Ihr Gerät, um sicherzustellen, dass es die Mindestsystemanforderungen von Windows 11 erfüllt. Sie erhalten Informationen dazu, warum Ihr Gerät geeignet oder nicht geeignet ist, sowie Informationen dazu, was Sie tun können, wenn Ihr Gerät die Anforderungen nicht erfüllt.
Активация Windows - Служба поддержки Майкрософт
Активация помогает убедиться, что ваша копия Windows является подлинной и не использовалась на нескольких устройствах, чем разрешено условиями лицензионного соглашения на использование программного обеспечения ...
Troubleshoot screen flickering in Windows - Microsoft Support
Press Ctrl + Alt + Delete to open Task Manager.If you don’t see Task Manager after pressing Ctrl + Alt + Delete, press Ctrl + Shift + Esc to open Task Manager.. If Task Manager flickers along with everything else on the screen, a display driver is probably causing the problem.
Create a system restore point - Microsoft Support
In the search box on the taskbar, type Create a restore point, and select it from the list of results.
Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Microsoft 365 for business If your business subscription plan includes the desktop version of the Microsoft 365 apps you won't see an option to install it unless someone in your organization assigned a license to you.. Learn how to check this in What Microsoft 365 business product or license do I have? or if you're a Microsoft 365 admin responsible for assigning licenses to people in your ...
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Present your data in a Gantt chart in Excel - Microsoft Support
Need to show status for a simple project schedule with a Gantt chart? Though Excel doesn’t have a predefined Gantt chart type, you can simulate one by customizing a stacked bar chart to show the start and finish dates of tasks, like this:
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Protect yourself from phishing - Microsoft Support
First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...