Unable to install SQL Server 2014 on Windows 8.1 64 bit

(01) 2015-07-16 10:25:54 Slp: The following is an exception stack listing the exceptions in outermost to innermost order (01) 2015-07-16 10:25:54 Slp: Inner exceptions are being indented (01) 2015-07-16 10:25:54 Slp: (01) 2015-07-16 10:25:54 Slp: Exception type: Microsoft.SqlServer.Configuration.Sco.ScoException (01) 2015-07-16 10:25:54 Slp: Message: (01) 2015-07-16 10:25:54 Slp: Attempted to perform an unauthorized operation. (01) 2015-07-16 10:25:54 Slp: HResult : 0x84bb0001 (01) 2015-07-16 10:25:54 Slp: FacilityCode : 1211 (4bb) (01) 2015-07-16 10:25:54 Slp: ErrorCode : 1 (0001) (01) 2015-07-16 10:25:54 Slp: Data: (01) 2015-07-16 10:25:54 Slp: WatsonData = netfxperf.dll@OpenPerformanceData@CollectPerformanceData@ClosePerformanceData (01) 2015-07-16 10:25:54 Slp: DisableRetry = true (01) 2015-07-16 10:25:54 Slp: Inner exception type: System.UnauthorizedAccessException (01) 2015-07-16 10:25:54 ...