ad.exe has links to viruses and malware. This process must be removed from your system quickly to prevent damage and protect the security of your system.

Adware.W32.sqwire is a type of malware, and ad is linked to it. Before making any changes to your system, you should backup your files, or create a Windows system restore point, so you don't lose any essential data.

This free scan of your system will help you to not delete any essential programs.

If ad.exe was located on your system, more viruses and malware are probably lurking, undiscovered. This free system scan is probably the best way to make sure you don't experience future issues with unimportant files.