Program Files (86x)
  Program Files (86x)\Common
  ProgramData
  ProgramData\Common

  There may be an avg@toolbar directory left also.

There are so many useless replies in other postings that didn't work that I decided to write the manual method for removal. Wading thru a confusing pile of posts is absurd. I hope this posts makes it easier for people trying to remove it. First, the removal tool at AVG Secure Search doesn't work. It is bs. They even say it may take multiple reboots before it is removed. That is absurd. Here is manual removal method. 0) Take note of the exact day and time AVG was installed. Write it down. 1) Stop ?ToolBarUpdate process 2) Delete AVG Secure Search directory in Program Files (86x) Program Files (86x)\Common ProgramData ProgramData\Common 3) Do a find in regedit. Delete any major entry containing "AVG Secure Search". 4) Search your local drive for any remaining file created around time that AVG program was installed. Look at properties attributes for the file. See if it is created by AVG. Delete it if so. There may be an avg@toolbar directory left also. 5) You may as well remove anything in Firefox as well. Check the directories again 24 hours later to make sure the AVG Secure Search doesn't exist or didn't reinstall You should be done