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Obtain a digital certificate and create a digital signature
What is a digital signature? A digital signature or ID is more commonly known as a digital certificate. To digitally sign an Office document, you must have a current (not expired) digital certificate.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
Use the System File Checker tool to repair missing or corrupted system ...
Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
SHA512 is disabled in Windows when you use TLS 1.2
Fixes an issue in which you cannot use SHA512 certificates for authentication or encryption. This issue occurs in Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, and Windows Server 2008 R2.
View digital signature and certificate details - Microsoft Support
View certificate details. The Signature Details dialog box displays certificate information such as the signer’s name in the Signing as box, and who issued the certificate. Open the file that contains the certificate you want to view. Click File > Info > View Signatures.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016, Excel 2013, Word 2013, PowerPoint 2013, InfoPath 2013
How to use the Regsvr32 tool and troubleshoot Regsvr32 error messages
Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows.
Description of the security update for Office 2016: April 12, 2022 ...
Summary. This security update resolves a Microsoft Excel remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2022-26901. Note: To apply this security update, you must have the release version of Microsoft Office 2016 installed on the computer. Be aware that the ...
Securely browse the web in Microsoft Edge - Microsoft Support
Enable Microsoft Defender SmartScreen. Enable enhanced tracking prevention. Enable secure DNS. Use Microsoft Edge's password manager. Exercise caution when downloading files. Browse anonymously with InPrivate browsing. Install extensions for added security. Keep Microsoft Edge Updated.
Uninstall or remove apps and programs in Windows
Windows 11 Windows 10. Uninstall from the Start menu. Select Start > All apps and search for the app in the list shown. Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings. Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall.
Command Prompt and Windows Powershell for Windows 11
Solution 1: System settings. Select Start > Settings > Privacy & security > For developers. In Terminal, select Windows Console Host. Solution 2: Windows Terminal settings. Open Windows Terminal, then select the Startup tab > Default terminal application > Windows Console Host. Solution 3: Windows Console settings.
Description of the security update for the remote code execution ...
A remote code execution vulnerability exists in Microsoft Visual Studio 2015 when it incorrectly handles debug information. To learn more about the vulnerability, see CVE-2023-36796, CVE-2023-36792, CVE-2023-36794, and CVE-2023-36793.