Master Database Rebuild failed

Hi All,

We have master Database corruption and there is no backup of it, so I have to rebuild the master database..And when i gave the command to rebuild 

1. No error was thrown in Command prompt

2. SQL server started to run again.

3. I am unable to login even though I gave my windows login in the /SQLSysAdminAccounts

When I see the log detail it shows failed 

Detailed results:
  Feature:                       Database Engine Services
  Status:                        Failed: see logs for details
  MSI status:                    Passed
  Configuration status:          Failed: see details below
  Configuration error code:      0xDC80C325
  Configuration error description: Access is denied
  Configuration log:             C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20140901_082201\Detail.txt

And in Detail.Txt this is the error

2014-09-01 08:22:48 Slp: Error result: -595541211
2014-09-01 08:22:48 Slp: Result facility code: 1152
2014-09-01 08:22:48 Slp: Result error code: 49957
2014-09-01 08:22:48 Slp: Sco: Attempting to create base registry key HKEY_LOCAL_MACHINE, machine 
2014-09-01 08:22:48 Slp: Sco: Attempting to open registry subkey 
2014-09-01 08:22:48 Slp: Sco: Attempting to open registry subkey Software\Microsoft\PCHealth\ErrorReporting\DW\Installed
2014-09-01 08:22:48 Slp: Sco: Attempting to get registry value DW0201
2014-09-01 08:22:48 Slp: Submitted 1 of 1 failures to the Watson data repository