I also have problems installing my Nero 7 Essentials, which stops with an error report at around 75% completion. I had upgraded my computer to windows 7 and reinstalled Nero with out any problems. When the mother Board went bad, I replaced it, tried re-installing nero, and have had nothing but problems. NOTE this: there isn`t any serial number for my Nero 7, and nowhere during installation does it ask for one! I have a CD key with my Nero 6, but windows 7 reports that Nero 6 isn`t compatible, before I even get to where it might ask for the CD key(serial number). I even downloaded nero clean software, which also stops with an error report at around 70% complete. I also tried loading the software into a completely different computer which has windows 7, using the same DVD writer which came bundled with the nero software, and same problem. Also, neither windows nor nero clean software can remove the partially complete software from the computer hard drives. I am trying the nero 12 software on 15 day trial, and though it works, for my application it is severely cumbersome to use compared with the nero 7. I will investigate other CD/DVD writing software to see if anything is comparable with the easy-to-use Nero 7, as I have already tried other cumbersome software by other manufactures which works similar to the new Nero 12--dont like any of them yet. I feel for the other guy who gave up, as I am now going to do--Might try one more thing, reload windows and install nero 7 before windows puts in it 100+ updates! I believe that somewhere along the line, windows updates has installed software which negates the nero 7 software.