Virage MediaBin 8.0.2 installation problem?

System

The following error occurred during the installation of VMB 8.0.2. Ask for help.

Error log:
Product: MediaBin Server - Error 27555. Error attempting to apply permissions to object 'C: \ MediaBin Server \ MBWebServer \ Staging \ Attachments \'. System error: The parameter is incorrect.
(87)

Installation environment:
- OS: Windows 2008 R2
- DB: SQL Server 2008

Thanks!