Open the and navigate to Programs and Features .
Windows Defender's real-time scanning frequently flags smartkey.dll as a potential threat (PUA or HackTool) and quarantines or deletes it. If the file is physically missing from your ECM Titanium folder, Defender likely "ate" it without warning.
: If all else fails, many tuners use a Virtual Machine (like VirtualBox ) to run a "clean" version of Windows XP or 7 specifically for their tuning tools. Comparison: ECM Titanium vs. WinOLS
: Windows 10 blocks the software from accessing system directories.
: Scroll down to Exclusions and click Add or remove exclusions .
