nrcs.exe is a known malware utility. The appropriate course of action is to delete this file, after backing up your PC, and scanning for more viruses.

nrcs and Tojan.W32.Ranky can cause major problems with the security of your PC, and need to be scanned and deleted. Spyware and viruses can be very tricky. Malware creators know their files will be deleted if found, so they sometimes give the files names that are similar to known legitimate files.

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Since nrcs.exe is running on your PC, there is a good chance that more adware is lurking. You can avoid future problems with spyware and viruses by using this free PC scanning tool.