Windows Optimal Settings can be removed by using Emsisoft HiJackFree by stopping the process ([random].exe) and delete the files at the same time. Then, remove the autorun setting set by Windows Optimal Settings.
Windows Optimal Settings should be removed immediately!
Windows Optimal Settings Removal Guide
Kill Process
(How to kill a process effectively?)
[random].exe
Delete Registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\[random].exe "Debugger" = 'svchost.exe'
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell" = '%Documents and Settings%\[UserName]\Application Data\[random].exe'
Remove Folders and Files
%Documents and Settings%\[UserName]\Start Menu\Programs\Windows Optimal Settings
%Documents and Settings%\[UserName]\Desktop\Windows Optimal Settings.lnk
%Documents and Settings%\[UserName]\Application Data\[random].exe
Windows Optimal Settings should be removed immediately!
Windows Optimal Settings Removal Guide
Kill Process
(How to kill a process effectively?)
[random].exe
Delete Registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\[random].exe "Debugger" = 'svchost.exe'
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell" = '%Documents and Settings%\[UserName]\Application Data\[random].exe'
Remove Folders and Files
%Documents and Settings%\[UserName]\Start Menu\Programs\Windows Optimal Settings
%Documents and Settings%\[UserName]\Desktop\Windows Optimal Settings.lnk
%Documents and Settings%\[UserName]\Application Data\[random].exe