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I think something wrong with "Windows Installer" in my "Windows 8.1 Core x64" (With latest updates) operating system.

Symptoms:

  • Can't install some softwares. Installation gives "Error 1603: Fatal Error During Installation."

  • I have a Windows installation disc. I want to upgrade to Windows Professional edition. When i insert the installation disc and run Setup.exe nothing happens. Doesn't even see Setup.exe in Task Manager. It runs and dissappear instantly.

  • I try to fix the problem by using "Windows Fix It" on this link: http://support2.microsoft.com/mats/program_install_and_uninstall/tr , when i run it it says some error happened and can not continue to solve problems. It doesnt give any technical information about the error.

What i tried :

  • With command prompt, Dism.exe /online /cleanup-image /restorehealth after this command Sfc /Scannow . It doesn't find any problems.

  • Checked if "Windows Installer" service is running. Found out that it's running and even tried to stop it and restart the service. No problem here.

  • With command prompt tried these commands : "Msiexec /unregister" , "Msiexec /regserver"

  • Checked if system-drive has proper rights for "System" user. It looks like "System" has full rights on system-drive.

  • Cleaned temporary folders with Ccleaner.

  • Searched for registry problems with Ccleaner.

Additional information about my operating system:

  • I'm %100 sure that it doesn't has any malware, spyware, rootkit or virus. Scanned whole system with well known softwares.

  • Operating system doesn't have any security software running in background when trying to install something. So, nothing trying to block installations.

  • Operating system doesn't have any 3rd party background service or runing 3rd party applications when trying to install something.

  • Drives are not encrypted.

  • Operating system is up-to-date. Installed latest updates with "Windows Update". No problem here.

  • System restore is disabled in all drives. There is no system restore points stored. (Because of performance issues)

  • All drivers are up-to-date.

Reinstalling the operating system is not an option for me. Because i have installed 100+ games, 100+ applications. I can't clean install all of them again :(

Some info about me:

I have lots lots lots of experience with Windows Operating systems and i love to heavy customize Os. Maybe i did something wrong this time i don't know. I like to come across these types of problems and solving them. But this time i failed.

What should i try?

  • 1
    did you check TrustedInstaller has the correct perms? – Tetsujin Dec 16 '14 at 18:06
  • I don't see "TrustedInstaller" in system-drive's permissions. I'll look at this thanks. – user2617750 Dec 16 '14 at 18:17
  • glad it helped ;) – Tetsujin Dec 16 '14 at 19:09
1

I give TrustedInstaller full permissions on system-drive and problem solved!

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