Seltsame Systemschriften, Firefox geht nicht mehr

All processes killed
========== OTL ==========
Registry value HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\\winstackxx.exe deleted successfully.
File move failed. C:\winstackxx.exe\winstackxx.exe scheduled to be moved on reboot.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce\\Start deleted successfully.
========== FILES ==========
File\Folder C:\winstackxx.exe not found.
========== COMMANDS ==========
C:\WINDOWS\System32\drivers\etc\Hosts moved successfully.
HOSTS file reset successfully
 
[EMPTYTEMP]
 
User: All Users
 
User: Default User
->Temp folder emptied: 0 bytes
->Temporary Internet Files folder emptied: 0 bytes
->Flash cache emptied: 0 bytes
 
User: Techniker
->Temp folder emptied: 903612 bytes
->Temporary Internet Files folder emptied: 33170 bytes
->Java cache emptied: 0 bytes
->FireFox cache emptied: 10228030 bytes
->Apple Safari cache emptied: 0 bytes
->Flash cache emptied: 456 bytes
 
User: LocalService
->Temp folder emptied: 66016 bytes
->Temporary Internet Files folder emptied: 33170 bytes
 
User: NetworkService
->Temp folder emptied: 49152 bytes
->Temporary Internet Files folder emptied: 33170 bytes
 
%systemdrive% .tmp files removed: 0 bytes
%systemroot% .tmp files removed: 24 bytes
%systemroot%\System32 .tmp files removed: 0 bytes
%systemroot%\System32\dllcache .tmp files removed: 0 bytes
%systemroot%\System32\drivers .tmp files removed: 0 bytes
Windows Temp folder emptied: 33251 bytes
RecycleBin emptied: 0 bytes
 
Total Files Cleaned = 11,00 mb
 
 
OTL by OldTimer - Version 3.2.17.3 log created on 11212010_132539

Files\Folders moved on Reboot...
C:\winstackxx.exe\winstackxx.exe moved successfully.
File\Folder C:\Dokumente und Einstellungen\NetworkService\Lokale Einstellungen\Temp\Perflib_Perfdata_490.dat not found!
File move failed. C:\WINDOWS\S32065512.tmp scheduled to be moved on reboot.

Registry entries deleted on Reboot...