My system has become infected with BrowserIO. This malware has created an obnoxious floating "Search the Web..." window which can be repositioned around the screen but can not be closed, resized, or minimized. It has created two files (see screen caps) which I have repeatedly trashed; nothing prevents their being recreated upon restart, and nothing will get rid of this window.
I have run Avast Security scans on the entire system and the entire hard drive. IT FOUND NOTHING.
Research hasn't been helpful. All articles suggest that this virus implants itself as an Extension on your system and/or your Web browsers, but I have no Extensions on my system and no new Extensions or Add-Ins on any of my browsers. Strangely, the articles mention a number of malevolent things this thing can do, but none mention this annoying search window.
Any suggestions helpful, and an explanation from Avast as to why it fails to even find BrowserIO, let alone fix it, would be appreciated.