12c Client: How to Resolve Error [INS-30131] on Win7 x64 Install?

Question

Hi all,
I'm getting an error message I can't figure out on the Oracle 12c client installer.
I have 11g client installed on my machine. I took the following steps:
Downloaded the 12g client for x64 from Oracle's web site.
Extracted the zip file.
Right-clicked on "Setup.exe" and selected "Run as Administrator."
Passed the OUI monitor check and it prepped the install from a temp directory.
Installer opens
I select a custom installation type (I'm really only looking for the odp.net managed DLLs) and click next.
I skip software updates and click Next.
I see the following error message: "[INS-30131] Initial setup required for the execution of installer validations failed." Cause: "Failed to access the temporary location".
I'm not sure what temporary location it's trying to access, but I'm a network administrator, with full admin rights on my box, running the program with elevated permissions and entering my credentials to do so.
Any help on this would be greatly appreciated

Answer 1

I had the same situation, when I was running the installer 2nd time (installing both 32-bit and 64-bit drivers for some reason). I found following articles on metalink:
"[INS-30131] The initial setup that is required to run the installation program validation was not successful " Error While Installing 12.1 (Doc ID 1569962.1)
Installation of 11gR2 on Windows Fails Checking Requirements (Doc ID 1133495.1)
Neither of them was helpful. After some time of poking around I noticed service OracleRemExecServiceV2 running from location C:\Users\<MyUsername>\AppData\Local\Temp\2\\oraremservicev2\RemoteExecService.exe - I stopped it and re-ran Oracle client installer. It solved the problem for me.