After reading all similar problems,i tried to download Vundofix,combofix and Hijack This...
After running in SAFEMODE,let vundo scan my hard drive twice,i noticed that before running hijack and combo....seems to me i have to post all the log files here and wait for your next advice.

Anyway,I am done with the vundofix and comfix,unfortunately i waited for 8 hours for the log report but i didn't get anything,just the bluescreen with PREPARING LOG REPORT .....
so i retstarted the computer already,after checking from my Drive "C' i don't see the Posxxxtemp...files anymore ,now what am i suppose to do next?My computer is still out of date and cannot surf the net and still didn't work on with the hijack thing.I believe i have to post my log here before proceeding.Is that right?

Thank you so much for helping and doing this people like us with a little knowledge in problems like this.