CobianSoft

Starting the installation...Couldn't copy a file to the installation directory: The process cannot access the file 'E:\Program Files\Cobian Reflector\Cobian.CommonX.CobEncryptX.dll' because it is being used by another process.
The installation has been completed but there are errors. Please consult the log tab.

This release also defaults to the C drive and does not use the drive I want, as per previous Betas.

Please advise.

Try installing again... Sometimes this happens if some file is being used at the moment...

I am having the same problem on Beta 9.78. I am thinking that Bitdefender is part of the problem.
It is very aggressive in quarantining the install. I am still working on how to fix this within Bitdefender.