The Install keeps stopping at "Error 1327 Invalid Drive ....

I’m trying to upgrade to 4.4.4 or 4.3.7 (tried both). The install keeps stopping at “Error 1327 Invalid Drive H:/” This machine doesn’t have an H drive and never has. I’m not asking for anything to be put there. What’s going on and how can I fix it? Thanks

Win 7 64 bit.

Please search for “Error 1327 Invalid Drive” in the web.

One link: https://support.microsoft.com/en-us/kb/327763