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[Solved]The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance.

Submitted by Vidhu on Nov 01 2014 Views: 3120 | Subscribe

The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not 
correctly installed

Error "The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance." while installing or uninstalling a Software package.

Solution 1: Open command prompt with administrator privilege and execute the following commands

1. msiexec /unregister

2. msiexec /regserver

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Solution 2: Verify the DCOM permissions

This method involves changing the DCOM default impersonation level to Identify, removing the Msisip.dll file, and then reinstalling SP 3 for Windows 2000.

To do this, follow these steps:
Click Start, click Run, type dcomcnfg, and then click OK.
On the Default Properties tab:
In the Default Authentication Level list, click Connect.
In the Default Impersonation Level list, click Identify, and then click OK.
Click Start, click Run, type explorer /select, %windir%system32msisip.dll, and then click OK.
Rename the Msisip.dll file as Msisip.old.
Reinstall Windows 2000 Service Pack 3.

Solution 3: Verify the registry permissions

Click Start, click Run, then type Regedt32.
For each of the registry hives, follow these steps:
Select the hive.
For Windows XP, on the Edit menu, click Permissions.

For Windows 2000 and Windows NT 4, on the Security menu, click Permissions.
Verify that the SYSTEM account has been added and that it has Full control. If it does not, add the SYSTEM account with Full control.
Method 5: Fix the broken security key for the MsiServer service

Start the computer by using Windows 2000.
Click Start, click Run, type regedit.exe, and then rename the following key to Old_Security:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesMSIServerSecurity
Restart the computer (you must do this).
Run Instmsiw.exe for installer 2.0 again; this corrects the broken security key for the MSI service.

Source: Microsoft.com


Tags: Windows Installer Service error, unable to start Windows Installer Service, unable to install software

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