I had recently posted that the engine Wise Anti Malware " engine failed to start:. I uninstalled the program and downloaded it again and saved it to my desktop and reinstalled it, This time I paid closely to the instructions and waited for the "engine with its definitions to install completely then I ran the program and did a full scan, it worked smoothly! I might add that although this program is compatible with "windows defender", you might want to disable any other malware protection while installing it. WISE PATIENCE is the KEY!
