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Steps To Fix Windows Installer Error 1719

Error 1719 occurs in Windows XP and Windows Server 2003. It has its origins with “Windows Installer” and normally causes the error “Windows Installer Service Could Not Be Accessed”. Installing or uninstalling software can trigger this error and using Windows update also causes it (as this uses the Windows Installer process). To fix this problem, follow the steps in this article…

What Causes Windows Installer Error 1719?

If this error is encountered, the follow error message(s) may appear:

Error 1719. The Windows Installer Service Could Not Be Accessed” Error Message When You Add or Remove Program

The 1719 error is caused when files for Windows Installer are either corrupt or missing, which typically occurs when a computer is old or has been used frequently. The error is also known to appear when the user tries to install software that makes use of the Microsoft Windows Installer extension (.msi). If Windows Installer is corrupt or damaged, then the installation process cannot proceed, showing the error. To fix this problem, you can follow the steps below:

How To Fix Error 1719

Step 1 – Reinstall Windows Installer

Reinstalling windows installer will repair any damaged files that this protocol requires, allowing your system to run much more reliably and without the error. The first way to fix this error is to follow these steps:

  1. Click Start > Run (search “run” on Vista & Win7)
  2. In the “run” applet that appears, type “cmd“. This opens up the command prompt which will let us reinstall Windows Installer.
  3. In command prompt enter these commands into it. Make sure they are identical to the following phrases:

cd %windir%\system32attrib -r -s -h dllcache

ren msi.dll msi.bak

ren msiexec.exe msiexec.bak

ren msihnd.dll msihnd.bak


Restart your PC after this to finish the uninstall of Windows Installer. It will then be necessary to install the latest Windows Installer which is available from either Microsoft website or Windows update. This process should sort the problem however if it has not then carry on to the next step.

Step 2 – Re-register Windows Installer DLL Files

It’s often the case that some Windows Installer files are not “registered” properly on the system. This is a common problem and it may then be necessary to register them using the following steps.

  1. Click Start > Run and in the open box type ” %windir%\system32“.
  2. Note the location of the “Msiexec.exe” file on your system. (Default location is C:\Windows\system32\Msiexec.exe)
  3. Next, Click Start > Run and, again, in the open box type “Regedit“. Press enter
  4. In the window that appears (Registry editing window – be very careful, take care not to alter anything as this is the centre of the Windows operating system), go to this key “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
  5. Click on the MSIServer
  6. In the right hand pane should be an option for ImagePath. Right click this entry and select “Modify
  7. (You will need the location of Msiexec.exe now) Type the location of the Msiexec.exe file into the Value Data field and type /V directly after it. (Eg C:\Windows\system32\Msiexec.exe /V). Click OK
  8. You can now close the Registry editor window
  9. Restart PC in safe mode (Press F8 before Windows Splash Screen appears and select Safe Mode from list)
  10. Click Start > Run and type “msiexec /regserver”. Press enter
  11. Restart your PC in safe mode as before

This should have have registered the files required for Windows Installer and hereby fixed the problem. If this is not the case, please continue to the next step.

Step 3 – Clean Out The Registry

Download This Registry Cleaner

The registry is a large database at the center of Windows, which is responsible for storing all the settings and vital information that your computer requires to run. Unfortunately, the registry is also one of the biggest causes of errors for the Windows system, as it’s constantly being saved in the wrong way, corrupting & damaging all the files it has. This is a big problem for all Windows systems, and is one of the main causes of Windows Installer errors. If you’re still receiving errors even after using the steps above, you should look to use a ‘registry cleaner’ to clean out all the damaged settings from the registry database to allow your computer to run much faster again. You can use our recommended registry cleaner to do this below:

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