istart123.com has hijacked my browser, I have tried all the removal options I can find but it keeps comming back, I have ran power eraser and it can`t even find anything, so it must not recognise this as a threat, it creates a folder in program files called sup tab . I can end the process HpUi.exe and Loader.exe in task manager, then delete the suptab folder, but it comes back at6 reboot, when its active my chrome browser crashes every time when trying to launch, and elplorer it locked to the 1start123 homepage, andf crashes when I try to search, so cannot use the internet, how come Norton does not recognise this as a threat if it does so much harm