Windows Defender or SmartScreen may flag the installer as a "Potentially Unwanted Application" (PUA), especially if you downloaded the version bundled with sponsored offers.
sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth can't install filezilla on windows 11
: Installing for "All Users" requires administrator privileges . If you lack these, the installation may fail or require a UAC prompt that you cannot bypass without a password [5, 13]. How to Fix It Windows Defender or SmartScreen may flag the installer
: Standard antivirus software, including Windows Security , may flag the installer as a virus or malware. This is often a false positive triggered by bundled "sponsored" offers (like browser add-ons) included in the primary download [8, 10, 19]. including Windows Security