As was previously mentioned (and ignored), this error was occurring when users had 100's of GB free, so clearing out temp files wasn't going to help.

Suggesting a paid call to Quickbooks to resolve the issue is certainly an option, but it's not really support.   Just trying to charge us for a solution a problem that Intuit has and should resolve.

Like another user here, I found that opening the file with the free 7-Zip program allowed me to install QB.

Shouldn't have been necessary, but thanks to the user that posted it.

And shame on QB for using this as an opportunity to steal money from its users.   Like many others, I hold my nose and buy this product, mainly because my bookkeeper likes it.