How to Fix the "Windows Installer Service could not be accessed" Error in Windows 7

Have you tried to install a program in Windows 7 that uses an MSI file as its installer and instead you saw the above error? Never fear. There is an easy solution and we’re here to help you with it.
First, click on the Start menu and select Run.
NOTE: If you don’t see the Run command on the Start menu, see our article about adding the Run command to the Start menu.
01_selecting_run_from_start_menu
In the Open edit box on the Run dialog box, enter “cmd” (without the quotes) and click OK.
02_entering_cmd_in_run_dialog
The Command Prompt window displays. For 64-bit Windows, type the following at the prompt and press Enter.
%windir%\system32\msiexec.exe /unregister
This unregisters the msiexec.exe file in the C:\Windows\system32 directory.
NOTE: We will show you the commands to enter for 32-bit Windows at the end of the article.
03_unregister_in_system32
Type the following at the prompt and press Enter.
%windir%\system32\msiexec.exe /regserver
This re-registers the msiexec.exe file in the C:\Windows\system32 directory.
04_regserver_in_system32
Type the following at the prompt and press Enter.
%windir%\syswow64\msiexec.exe /unregister
This unregisters the msiexec.exe file in the C:\Windows\syswow64 directory.
05_unregister_in_syswow64
Type the following at the prompt and press Enter.
%windir%\syswow64\msiexec.exe /regserver
This re-registers the msiexec.exe file in the C:\Windows\syswow64 directory.
06_regserver_in_syswow64
To close the Command Prompt window, type “exit” (without the quotes) at the prompt and press Enter.
07_closing_cmd_window
Reboot your computer. You should now be able to install programs that use MSI installer files.
To fix this problem in 32-bit Windows, open the Command Prompt window as described above. Type the following commands in order, pressing Enter after each:
msiexec /unregister
msiexec /regserver
Exit the Command Prompt window and reboot your computer to complete the fix.
Post a Comment
Thanks for your comment
Powered by Blogger.



close