Not recommending you use their clean up process, but here http://www.prevx.com/filenames/X678219248043914988-X1/WINUDP64.EXE.html is an explanation of the virus.
NOTE. You mentioned winupd64.exe which is slightly different.
Wow! Thanks a million. It came up telling me there were all these viruses but I ran a scan with my system and said I was clean. Thank goodness I didn’t install it!! I wonder how I can get rid of the thing that pops on every time I turn on my pc.