navicat-refresh Version Navicat Premium 15 & 16 (Windows) Delete Navicat Registry File HKEY_CURRENT_USER\Software\PremiumSoft\NavicatPremium\Registration[version and language] ex : Registration15XCT, Registration16XEN HKEY_CURRENT_USER\Software\Classes\CLSID\ * \Info Delete all "Info" folder under CLSID (Parent folder name of Info may vary from person to person) Be sure that will not delete other important file