First put hijackthis .exe in its own folder on you hard drive ,something like f:\HJT\hijackthis.exe ,because it will make back of fixes incause you need to redo a bad fix .
Please Check and Remove the Following Entries from Hijack This
Note: When removing these entries or files, make sure NO Internet Explorer windows are open. Now Reboot, and if theirs any more problems, post another log here please
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R3 - Default URLSearchHook is missing
O2 - BHO: (no name) - {029CA12C-89C1-46a7-A3C7-82F2F98635CB} - (no file)
O4 - Global Startup: Microsoft Office.lnk = F:\Program Files\Microsoft Office\Office\OSA9.EXE