The “Dangerous Files Detected!” popup is a misleading popup meant to promote the rogue anti-spyware program
Manual "Dangerous Files Detected!" Popup removal
Stop these "Dangerous Files Detected!" Popup processes:
PAVRM.exe
Remove these "Dangerous Files Detected!" Popup Registry Entries:
HKEY_CURRENT_USER\Software\AVR
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
Remove these "Dangerous Files Detected!" Popup files:
%Program Files%\AdvancedVirusRemover
%Program Files%\AdvancedVirusRemover\PAVRM.exe
%UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\Advanced Virus Remover.lnk
%UserProfile%\Desktop\Advanced Virus Remover.lnk
%UserProfile%\Start Menu\Advanced Virus Remover.lnk