
Blocked attachments in Outlook - Microsoft Support
If you need to receive a blocked file, ask the sender to upload the file to OneDrive or SharePoint and send you a link. Once you receive the link, you can open the file location and download …
File Explorer automatically disables the preview feature for files ...
Oct 22, 2025 · If you are confident in the safety of both the file and its source, you may remove the internet security block. To remove the block for a downloaded file, right-click the file in File …
What to do when a malicious file is found in SharePoint Online ...
A file in SharePoint, OneDrive, or Teams is blocked. What do you do? Read this article to learn why this is happening and steps you can take.
Types of files that cannot be added to a list or library
Administrators can add more types of files to block. If you find file types that aren't listed here, but are blocked, speak to your SharePoint admin or manager.
Outlook blocked access to the following potentially unsafe …
Describes the steps to take when you receive an "Outlook blocked access to the following potentially unsafe attachments" message in Outlook.
Block or unblock external content in Office documents
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 …
Outlook blocks opening FQDN and IP address hyperlinks after …
Jul 11, 2023 · In order to ensure continued access to files on FQDN or IP address paths add those URLs to the Trusted Sites zone in accordance with Windows guidance, Intranet site is …
Restrictions and limitations in OneDrive and SharePoint
May 1, 2023 · This article contains information about the restrictions and limitations that apply to files, file names and file types when syncing with OneDrive for home, OneDrive for work or …
External Workbook Links to Blocked File Types Will Be Disabled by ...
Starting October 2025, File Block Settings in the Trust Center will apply to external workbook links in Excel. Workbooks that attempt to reference blocked file types will either fail to refresh or …
Automatic file download notifications in Windows
How to block automatic app downloads Select Cancel download > Block app to cancel the download and block the app from downloading online-only files again in the future. Note: …