Installed Windows beta today, and boinc_6.12.34_windows_x86_64.exe fails during installation with following error:

Failed to add user to the 'boinc_admins group' (BOINC Master)

6.12.34 won't detect that Windows version anyway, it doesn't have Windows 8 detection built in. You'll need at least 6.12.38, although 6.12.43 has further fixes. So best get that.

6.12.43 32bit version
6.12.43 64bit version

Then when reading this old thread where people were trying to do this before, they noticed they needed to install BOINC as a service or protected application execution to be able to get it to work. That will stop GPU detection though.

But even after all that, it's a beta Windows you're running. It'll need quite a bit more work from what I read. You can't expect full compatibility from every piece of software out there. Not until a complete full release is out.

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