QuickBooks Error 1904: Fix the Failed File Registration Installing QuickBooks and see “Error 1904: [file path] failed to register”? This happens when critical files like ICWrapper.dll or qbupdate.exe can’t be properly written. Start by running the QuickBooks Install Diagnostic Tool from the Tool Hub; it can repair many underlying issues within Microsoft components. If that doesn’t work, move on to manually adjusting permissions or reinstalling as an administrator. ------ https://druzefaces.com/blogs/88474/How-to-Resolve-Installation-File-Issue-QuickBooks-Error-1904