Cannot install 7.1.4.0

biz
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Cannot install 7.1.4.0

Post by biz »

I'm having a problem upgrading to 7.1.4.0 (from 6.21.0.0) on Win 8.1 - never had a previous problem.

Installation stops about 2/3 of the way through with the error:

"The specified path 'C:\Windows\Installer\Config.Msi\' is unavailable"

The path is correct, and I've played about with permissions till I'm blue in the face.

Won't even install in safe mode, as administrator, or anything else that I can try.

Ideas, anyone?