I am missing a file called RNENU.msi'. I am very new to this. Won't let me install downloaded file.

We need a wee bit more info from ya...

Like, first, what planet are you currently posting from... (With a preposition at the end of, of course!) ?

Are you running anything from a motherboard to a video card made by MicroStarInternational ???
(They make really ACE video cards, at the least !)

((And, of course, .msi could also refer to Microshaftidiot... Not you, THEM !!!))

Tell us all the details and some nut here will be able to help you, OK ?

Also... In the meantime, do a GOOGLE search for

rnenu.msi

You will find that you are not alone !

But, you must try to tell us just exactly what it is you are trying to do and what is being 'prevented' from running...

If it is possibly a ripped-off game, than you are deep-doo-doo out of luck here !!!

__________________
Fusion for REAL!--CDex 1.51--Wackyuses--Bitzi - Check Files Before Download !--.mp3 File Name Change Problems? Try Rename-It!--Alternate PORTS--Avast- Anti-Virus--WindowWasher--IrfanView--PC Pitstop - Test your PC !--Mac OSX Troubleshooting--GO .ape ! - For 'Lossless' Audio Compression--Port :6346 - Test If It Is 'Blocked'--Cole2k Codecs--OldVersion - Newer isn't always better !
Nod32 - Free Virus Scan: Use ESET's Online Antivirus Scanner

Tomorrow's forecast:
Sunni in places, Shi'ite in others...