Installation of SSRS 2014 freeze

Question

Hi, im having a issue trying to install SSRS 2014 on my Windows 2012 Standard Server.
I was having trouble trying to install SQL 2014 Standard (downloaded from my partner account), and was failing. So i started it again, installed core features, plus manager, but without SSRS and it installed without issues. 
When after i try to add SSRS to the instance, it freeze at same point. The installation runs thru, until it goes to sqlRsConfigAction_install_confignonrc_cpu64. In this moment, the installation freezes and dont go anywhere further. If i cancel the installation
its the same, it remains frozen, i need to kill the process.
When i check it seen the SSRS is installed, in one attempt it even started the service but it was clearly not running as it should. When i try to use the repair feature of installation it says it couldnt be repaired because it never was properly installed.
When i check the logs, at program files\Microsoft SQL Server\120\Setup Bootstrap\Log\20150406\SQL_rs_Cpu64_1.log
It seen the installation was completed, but its not working at all. I was thinking this was somewhat related to IIS, since there is nothing configured on IIS when i open IIS manager. I tried to install with IIS stopped, and also with FastCGI stopped (used
for PHP), and also the mysql server stopped, but nothing solved the issue.
Anyone have any idea what can i do? Reinstalling the server isnt a option, it would require a lot of work to put the mySQL/php website working back, and also several other issues reconfiguring filezilla server that is being used for other services, plus
i cant allow those services to be suspended. I need SQL Server to publish a asp.net application that is currently running on other server.
MSI (s) (D4:88) [15:30:33:880]: Note: 1: 1707
MSI (s) (D4:88) [15:30:33:880]: Product: SQL Server 2014 Reporting Services -- Installation completed successfully.
MSI (s) (D4:88) [15:30:33:880]: Windows Installer installed the product. Product Name: SQL Server 2014 Reporting Services. Product Version: 12.0.2000.8. Product Language: 1033. Manufacturer: Microsoft Corporation. Installation success or error status: 0.
MSI (s) (D4:88) [15:30:34:912]: Deferring clean up of packages/files, if any exist
MSI (s) (D4:88) [15:30:34:912]: MainEngineThread is returning 0
MSI (s) (D4:7C) [15:30:34:912]: RESTART MANAGER: Session closed.
MSI (s) (D4:7C) [15:30:34:912]: No System Restore sequence number for this installation.
=== Logging stopped: 06/04/2015  15:30:33 ===
MSI (s) (D4:7C) [15:30:35:021]: User policy value 'DisableRollback' is 0
MSI (s) (D4:7C) [15:30:35:021]: Machine policy value 'DisableRollback' is 0
MSI (s) (D4:7C) [15:30:35:021]: Incrementing counter to disable shutdown. Counter after increment: 0
MSI (s) (D4:7C) [15:30:35:021]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (D4:7C) [15:30:35:100]: Note: 1: 2265 2:  3: -2147287035
MSI (s) (D4:7C) [15:30:35:100]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (D4:7C) [15:30:35:100]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied.  Counter after decrement: -1
MSI (s) (D4:7C) [15:30:35:342]: Destroying RemoteAPI object.
MSI (s) (D4:40) [15:30:35:342]: Custom Action Manager thread ending.
MSI (c) (38:10) [15:30:35:342]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied.  Counter after decrement: -1
MSI (c) (38:10) [15:30:35:342]: MainEngineThread is returning 0
=== Verbose logging stopped: 06/04/2015  15:30:35 ===
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Answer 1

Hi Renato,
First please help to check the article below to see if it is helpful.
https://support.microsoft.com/en-us/kb/2000257/
Also besides the installation log please also help to check the application&system event log to see if we can get some useful information. 
Also,From a support perspective to further analize this issue is really beyond what we can do here in the forums. If you cannot determine your answer here or on your own, consider opening a support case with us. Visit this link to see the various support
options that are available to better meet your needs: 
http://support.microsoft.com/default.aspx?id=fh;en-us;offerprophone