How do I remove istart.webssearches.com

Hi all,

I have accidentally (I think) installed istart webssearches whilst downloading a Codec program I needed. I think that I clicked on the accept button thinking it was part of the Codec requirement.

I have tried resetting Explorer through the Advanced Options, through the Control Panel uninstall, Looking in the C/ drive for related programs but its still here.

The only thing I can’t remove from C/: drive is the Sup Tab file. It keeps telling me its open in another program.

Is there a way I can get the Avast Antivirus program I’ve recently installed to remove it?

or is there a safe program I can download to remove it?

thanks in advance for any help

how to recive help instructions https://forum.avast.com/index.php?board=4.0