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Use ActiveX controls for Internet Explorer 11 - Microsoft Support
To change ActiveX settings. In Internet Explorer, select the Tools button , and then select Internet options. On the Security tab, select Custom level, and then under ActiveX controls and plug-ins, do one the following: Allow Automatic prompting for ActiveX controls by selecting Enable.
Add, turn off, or remove extensions in Microsoft Edge
To remove any extension, choose one of the following methods: In Microsoft Edge, select and hold (or, right-click) the icon of the extension you want to remove (to the right of your browser address bar). Select Remove from Microsoft Edge > Remove. To the right of your browser address bar, select Extensions and select More actions next to the ...
View, manage, and install add-ins for Excel, PowerPoint, and Word
Require Application Add-ins to be signed by Trusted Publisher Check this box to have the Trust Center check that the add-in uses a publisher's trusted signature.If the publisher's signature hasn’t been trusted, the Microsoft 365 program doesn’t load the add-in, and the Trust Bar displays a notification that the add-in has been disabled.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 for Mac, Word 2021 for Mac, PowerPoint 2021 for Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 for Mac, Word 2019 for Mac, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, Excel 2016 for Mac, Word 2016 for Mac, PowerPoint 2016 for Mac, InfoPath 2013
Enable ActiveX controls in Internet Explorer - Microsoft Support
Click Tools > Internet Options. Click the Security tab > Custom Level. Scroll down to ActiveX controls and plugins and click Enable for: Run ActiveX controls and plugins. Script ActiveX controls marked safe for scripting. Click OK to close the dialog boxes, and then restart Internet Explorer.
Applies To: Lync Web App for Lync Online, Lync Web App, Lync Web App operated by 21Vianet
Access work or school troubleshooter for restoring access to M365 ...
Access work or school troubleshooter for restoring access to M365 desktop applications. Windows 11 Windows 10. This article describes the problem addressed by the troubleshooter, what it does to mitigate them, and the conditions that can cause it to run.
Disabled application mitigations in the EMET Application Configuration ...
Symptoms. EMET policies are not cumulative. When Default Protections policies are applied in addition to the Application Configuration policy, duplicate entries for the same application may occur, and you cannot prioritize the Application Configuration settings.
Trouble installing the plug-in? - Microsoft Support
Click Tools > Internet Options. Click the Security tab > Custom Level. Scroll down to Downloads and click Enable for File download. Re-join the meeting. The plug-in should download without errors. To allow the downloading of encrypted files in Internet Explorer: Go to Tools > Internet Options > Advanced.
Applies To: Lync Web App for Lync Online, Lync Web App, Lync Web App operated by 21Vianet
Uninstall or remove apps and programs in Windows
Windows 10. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly. Windows 11 Windows 10.
Add or load a PowerPoint add-in - Microsoft Support
Add-ins are supplemental programs that add custom commands or custom features to Office programs. You can obtain add-ins for PowerPoint at Popular Office downloads or on third-party vendor websites. If you are a developer, you can write your own custom add-in programs by using Microsoft Visual Basic for Applications (VBA).
Applies To: PowerPoint for Microsoft 365, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016, PowerPoint 2013
Fix problems that block programs from being installed or removed ...
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open.