Despite the new Microsoft Beta1, ad-Awre , Avast and Spybot S&D which all find and delete (they say) vatious problems they all return within minutes. Details are loss of internet connection and _ found by Microsoft- 180 search assistant Target Saver Trojan Downloads IST Power Scan IST ISTbar ContentMatchControl Wind Updates Media Access Adware People on Page Browser Modifier Apropos Media.
Latest problem is Microsoft Beta1 freezing when removing IST ISTbar Content Match Control.
Download and run Hijack this click here then when it runs, post the analysis log and wait for one of the experts to pin down what's wrong. It sounds like you have a particularly pernicious bit of self reloading spyware, but they'll be able to analyse it better than I can.
I recently downloaded Easy Cleaner (by ToniArts) It is free and very comprehensive. Use it with care though, esp going into the Registry, unless you know what you are doing. You can also schedule it to perform automatically once a day or week, etc. One other word of caution....always omit Office from the delete options. Good luck!