Microsoft Confirms Remote Desktop Warnings May Appear Incorrectly After April Update

Microsoft confirmed a graphical rendering flaw in the redesigned Remote Desktop Connection (MSTSC) security warning introduced in the April 2026 update (Windows 11 26H1, KB5083768), which causes overlapping text, truncated content, and hidden action buttons on multi-monitor setups with inconsistent display scaling; as a temporary workaround administrators can set a registry value to revert to the legacy warning dialog, but this reduces protections against previously observed phishing attacks that weaponize malicious .rdp files.