I found out that I only had to do the repair via the Control Panel to fix the issue, or reinstall Quickbooks 24 altogether. Most of our installs were already up to the latest version (v34.0.4015 I believe). The first computer I did wouldn't let me do the repair. It kept getting error 1334 halfway through, and asked for an installation CD (never existed). I had to reinstall Quickbooks, and it worked fine after that. The second computer kept throwing errors during the repair for missing files, but let me ignore them. Worked afterwards. The next few PCs were a breeze. The one PC that had 4014 we left alone, because it didn't seem to have this issue yet.