How to extent FSRM Storage Reports limit of 100 files to more on 2008 R2

I have a File Server in Windows 2008 R2, in the Storage Report only shows 100 statistics for filesand displays the followingmessage.

"More than the maximum number of files per group matched the report criteria, Only the top 100 files are shown in the following file groups: BUILTIN\Administrators"

I want see all the files.

Help me, please

Thanks.