

Microsoft Defender SmartScreen prevented an unrecognized app from startingWindows found that this file is potentially harmful. Similar messages you may see when a file is blocked are: Name it as SaveZoneInformation and give it value of 1. Now in the right pane, right-click on an empty space > New > DWORD. Right-click on Policies > New > Key and name it as Attachments. Run regedit and navigate to the following key: User Configuration > Administrative Templates > Windows Components > Attachment ManagerĬhange the Do not preserve zone information in file attachments setting to Enabled. Run gpedit.msc and navigate to the following setting: They have been touched upon in brief, below. This post shows how to configure High risk, Medium risk, Low-risk files in the Attachment Manager using Group Policy or Registry Editor. If you wish, you can change its severity.Īlthough we do not recommend it, you can also stop Windows 10 from checking or blocking such files by changing a Group Policy or Registry setting. If it identifies an attachment that might be unsafe, it prevents you from opening the file, or it warns you before you open the file. When an external file is downloaded/copied to the machine, Windows attaches a Zone Identifier. The Attachment Manager protects you against unsafe attachments and downloads by identifying the file type and the respective security settings. Under the General tab, towards the bottom you will see classified under Security: This file came from another computer and might be blocked to help protect this computer. If you wish to open the file, you will have to right-click on the file and open Properties.

If you see its Properties, you may see a message displayed: This file came from another computer and might be blocked to help protect this computer # 1] Unblock the file #
