When your computer starts doing things on its own – advertisements and pop-ups that you know you didn’t initiate, it may leave you with an uneasy feeling, like is your PC haunted by the BHO.ahn ghost? It’s no ghost, but adware that is installed on your computer without your knowledge and it monitors your activity. BHO.ahn, is a browser helper object, that attempts take control of your Windows Explorer and Internet Explorer, and it is typically hidden from the Windows Task Manager, so you never know it’s there.
This adware is automatically executed by Windows Explorer each time Windows is started with the main goal of changing your Internet Explorer home page, showing irritating pop-ups and advertisements to drive you crazy. It can also monitor your address bar and redirect your browser to some strange address that you know you didn’t want.
You can attempt to remove a BHO manually – Control Panel – Internet Options – Advanced – Uncheck “Enable 3rd party browser extensions,” terminate the Internet Explorer and remove .dll file of BHO or you can try removing it - Select tools – Manager Add-ons. From there, you can see any unwanted Internet Explorer add-ons and remove them, maybe….
Many people have starting using Firefox over IE because it has an option to remove unwanted add-ons. If you do suspect Firefox is infected, you can simply select Tools – Add-Ons, and uninstall any unwanted toolbars from there.
A common problem that many face when trying to uninstall adware manually using the Add/Remove Programs is that there may still be hidden files, which will come back after you reboot. It is highly recommended that you use a spyware removal tool to be sure that you have removed all traces of the adware. Failure to do so will cause havoc on your PC and on you with the annoying pop-up and unwanted advertisements.