PUP.OPTIONAL.BROWSERFEATURES is reported as Win32:PUP-gen (potentially unwanted program). I suggest you to remove PUP.OPTIONAL.BROWSERFEATURES from your PC as soon as possible!
Tried to remove PUP.OPTIONAL.BROWSERFEATURES? Cannot completely delete PUP.OPTIONAL.BROWSERFEATURES, because it gets back?
See how to fix PUP.OPTIONAL.BROWSERFEATURES step by step using my removal guide.

How PUP.OPTIONAL.BROWSERFEATURES got on my computer?

Like many potentially unwanted programs, PUP.OPTIONAL.BROWSERFEATURES can be installed on your computer as part of a bundle with another tool you downloaded from the Internet. Since PUP.OPTIONAL.BROWSERFEATURES manufacturer pays software developers for distributing PUP.OPTIONAL.BROWSERFEATURES within their applications, PUP.OPTIONAL.BROWSERFEATURES is often included as part of the installer.
PUP.OPTIONAL.BROWSERFEATURES is also often distributed with free games and simple, one-click freeware tools developed specifically with the purpose of getting PUP.OPTIONAL.BROWSERFEATURES onto as many computers as possible.
Usually, you have not only one PUP.OPTIONAL.BROWSERFEATURES problem, but a bunch of similar WIN32:PUPs.

How dangerous is PUP.OPTIONAL.BROWSERFEATURES?

While PUP.OPTIONAL.BROWSERFEATURES is not considered illegal and is not officially classified as malware, it poses a direct threat to your privacy. Since PUP.OPTIONAL.BROWSERFEATURES runs alongside your Web browser, it can collect and transmit information such your search queries, Web forms and passwords, names and messages, track Web sites that you visit, and do much more on your computer without you even knowing. PUP.OPTIONAL.BROWSERFEATURES was reported to cause significant slowdowns in browser performance, making Web page load times much longer compared to a clean system.

On a scale of 1 to 5 (with 1 being "mostly harmless", 3 being "invasive" and 5 being "dangerous"), PUP.OPTIONAL.BROWSERFEATURES can be rated as a 3.

How to remove PUP.OPTIONAL.BROWSERFEATURES?

Step-by-step Guide for manual removal of PUP.OPTIONAL.BROWSERFEATURES:

1. Uninstall PUP.OPTIONAL.BROWSERFEATURES using Windows uninstallation applet (use Add/Remove Programs or Uninstall Program or Apps & features).
2. Open Task Manager to kill all "PUP.OPTIONAL.BROWSERFEATURES" related processes.
3. Use Windows search to find and remove "PUP.OPTIONAL.BROWSERFEATURES" files and folders.
4. Run services.msc to disable a "PUP.OPTIONAL.BROWSERFEATURES" Windows service.
5. Execute taskschd.msc to get rid of "PUP.OPTIONAL.BROWSERFEATURES" scheduled tasks.
6. Open regedit.exe and delete PUP.OPTIONAL.BROWSERFEATURES registry keys and values.
7. Check your shortcuts on your desktop and in the Start menu for PUP.OPTIONAL.BROWSERFEATURES presence. Fix infected shortcuts.
8. Remove a virus from Google Chrome.
9. Remove a virus from Internet Explorer.
10. Remove a virus from Mozilla Firefox.
11. Clean your Recycle bin and temporary files.