WinIFixer is a another rogue anti-spyware application that displays fake warnings and scanning results and prompted to pay for a full license of the application in order to remove the errors.
Download – Removal Tool for WinIFixer
Screenshots:
WinIFixer

Symptoms of WinIFixer
Pop up balloon warning messages claiming that your PC is infected.
- "Critical System Error",
- "Your computer is infected",
- "Trojan-Spy.win32@mx",
- "Virus Alert",
- "Security Alert"
| MANUAL REMOVAL PROCESS |
Search and kill the following processes (Learn Here)
WinIFixer.exe
Remove WinIFixer files & dlls files (Learn Here)
%ProgramFiles%\WinIFixer\msvcp71.dll
%ProgramFiles%\WinIFixer\msvcr71.dll
%ProgramFiles%\WinIFixer\WinIFixerSkin.dll
%ProgramFiles%\WinIFixer\MFC71.dll
%ProgramFiles%\WinIFixer\MFC71ENU.DLL
Remove/Modify corrupt Registry Entries (Learn Here)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WinIFixer
HKEY_LOCAL_MACHINE\SOFTWARE\WinIFixer.com