Identifying and analyzing unwanted software is a complex challenge. New forms of unwanted software are constantly under development. The same technology that can make software unwanted also appears in software that you want to keep and use (such as antivirus or antimalware software). It’s not always possible to automatically determine whether a program is something you want to keep or something you want to remove.
Microsoft helps by giving you the information and tools you need to decide which software to download, install, and run on your PC.
We maintain a definition library of unwanted software. This library has a database of unwanted software files and settings. When our researchers identify new unwanted software, they create definitions and add them to the library. We release regular definition updates to help protect your PC and personal information.
You can participate in our worldwide network by submitting unwanted software for analysis. This network helps identify programs to add to our definition library.
New forms of unwanted software are developed and distributed rapidly. As a result, Microsoft reserves the right to adjust, expand, and update its criteria for analysis without prior notice or announcements.
Microsoft has created a worldwide network where you can submit unwanted software for analysis. Participants in the network play a key role in helping identify new suspicious programs quickly. After analysis, Microsoft creates definitions for programs that meet the criteria, and makes them available to all users through Microsoft antimalware software.
If you believe you have been negatively affected by unwanted software, download and install Microsoft antimalware software. If the unwanted software persists, you can report the problem to Microsoft