Get help with Windows activation errors - Microsoft Support
Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.
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.
Deactivate an installation of Office - Microsoft Support
Learn how to deactivate an Office install that you shared with someone or deactivate an Office install so you can install it on another device.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
A subscription notice appears when I open a Microsoft 365 …
The Office install on your computer was signed out or deactivated using the instructions in Deactivate a Microsoft 365 install. This is typically done to allow you to sign in to another Office device (Microsoft 365 Family) or to free up an Office install (Microsoft 365 for business).
Order of events for database objects - Microsoft Support
When you switch between two open forms, the Deactivate event occurs for the first form, and the Activate event occurs for the second form: Deactivate (form1) Activate (form2) The Deactivate event for a form also occurs when you switch from the form to another object tab in Access.
Enable and disable your touchscreen in Windows - Microsoft …
Select the Action tab at the top of the window.Select Disable device or Enable device, and then confirm.If there's more than one HID-compliant touchscreen device listed, perform steps 2–3 for that one too.
Unlicensed Product and activation errors in Office
If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.
Enable or disable site collection features - Microsoft Support
Click Deactivate to disable the site collection feature. Site collection feature dependencies Some site collection features only work when an application or service is installed or enabled.
Activate Office for Mac - Microsoft Support
This article provides step-by-step instructions on how to activate Office for Mac. If you're running into errors or issues with installing or activating Office on your Mac, see What to try if you can't install or activate Office for Mac instead.