This error message ""WMWT_Ro SetupCrystalReport Error 2147206450 Line 80 Desc; Disk Full"" at report generation means that the Hard Drive or partition that the software is installed on, does not have an enough free hdd space to create the report.
To eliminate unwanted items off of the hard drive, Contact your IT department or your computers manufacturer. A list of items that can be emptied are, Temp files, Temporary Internet files, Cookies, and unwanted programs.