Start OTS. Copy/Paste the information in the quotebox below into the panel where it says “Paste fix here” and then click the Run Fix button.

[Unregister Dlls]
[Registry - Safe List]
< BHO's [HKEY_LOCAL_MACHINE] > -> HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\
YN -> {5C255C8A-E604-49b4-9D64-90988571CECB} [HKLM] -> Reg Error: Key error. [Reg Error: Key error.]
[Files/Folders - Modified Within 30 Days]
NY ->  ~16375588 -> C:\Documents and Settings\All Users\Application Data\~16375588
NY ->  ~16375588r -> C:\Documents and Settings\All Users\Application Data\~16375588r
NY ->  16375588 -> C:\Documents and Settings\All Users\Application Data\16375588
[Files - No Company Name]
NY ->  Microsoft Security Essentials.lnk -> C:\Documents and Settings\All Users\Start Menu\Programs\Microsoft Security Essentials.lnk
NY ->  ~16375588 -> C:\Documents and Settings\All Users\Application Data\~16375588
NY ->  ~16375588r -> C:\Documents and Settings\All Users\Application Data\~16375588r
NY ->  16375588 -> C:\Documents and Settings\All Users\Application Data\16375588
[Empty Temp Folders]
[EmptyFlash]
[Reboot]

The fix should only take a very short time. When the fix is completed a message box will popup telling you that it is finished. Click the Ok button and Notepad will open with a log of actions taken during the fix. Post that information back here

I will review the information when it comes back in.