It's fairly certain that lgnkrv.exe is malware or adware. The appropriate action is to remove this file, after backing up your computer, and scanning for more malware.

lgnkrv and it's associated process, Adware.W32.PurityScan, are known to be a type of virus. Before making any changes to your computer, 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 computer will help you to not delete any essential programs.

With lgnkrv.exe already on your computer, there is a good chance that there are more harmful file lurking. Get a free scan of your computer.

copernicdesktopsearch.exe is known to be part of a process called Copernic Desktop Search, and these have been confirmed as safe.

Spyware and adware can infect your computer very easily, even if you only surf the internet. The fact that this file is not malware doesn't mean your computer is not infected.

The best way to avoid problems with spyware and other types of spyware is to scan your computer for free and get rid of all the harmful files right now.

mpsetup.exe is associated with Windows Media Player Installer, and is not known to be harmful to your computer.

Even so, you may have malware, or some other form of spyware on your computer, and be completely unaware.

You can avoid future problems with viruses and spyware by using this free computer scanning tool.