To remove the block for a downloaded file, right-click the file in File Explorer, select Properties, and then select Unblock. Note: The change might not take effect immediately but will be effective after the next login.

To help protect your security and privacy, Microsoft Office is configured by default to block external content—such as images, linked media, hyperlinks, and data connections—in workbooks and presentations.

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

There are several ways to send and receive a blocked file. You can save the file to the cloud and send a link to the file, use a file compression utility like WinZip, or even rename the file with another extension, then have your recipient change the name back to the original name after they receive the file.

To force SafeSearch for your network, you’ll need to update your DNS configuration. Set the DNS entry for www.bing.com to be a CNAME for strict.bing.com. You’ll want to use a CNAME rather than the strict.bing.com IP as the CNAME will continue to work even if the IP for strict.bing.com changes.

Learn how to open encrypted emails. Outlook protected messages have a banner at the top of the message that informs you of restrictions. Outlook should open the message like normal. Otherwise, follow instructions for opening encrypted or protected mail.

You've come across a file in SharePoint in Microsoft 365, OneDrive for work or school, or Microsoft Teams, but you're unable to open or share it. You can see the file is there, but it's blocked and the file has a warning icon next to it: To protect yourself, your computer, and your organization, the best option is to delete the file.

Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.

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Block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel. If you're trying to remove malware, you can use Windows Security (or another antivirus tool), or you can use the Windows Malicious Software Removal tool.