You’ve likely found this page because you have a Windows virtual machine that has low space on the C: drive. You added more space to the VM using your hypervisor administration tool but when you log into the VM to try and extend the C: drive, you find yourself confronted with the problem below:
Prevent Security Prompt when opening .RDP Files
Are you here because suddenly you’ve found that whenever you or your users open .RDP files, this security prompt is now shown: You’ve investigated and you’ve found that this is due to an intentional security change Microsoft made in April 2026 updates that cause any unsigned .RDP file to present this warning on every launch … Read more