Basic troubleshooting steps for Windows Installer

Method 1: Reregister Windows Installer

1. Verify the location of the Msiexec.exe file on the hard disk. To do this, follow these steps:
   
   1. Click Start, point to
      Search, and then click For Files or Folders.
      
   2. Click All files and folders.
   3. In the All or part of the file name box, type Msiexec.exe, and then click
      Search.
   4. In the search results, note the location of the Msiexec.exe file.
      
      The file location of the Msiexec.exe file should be similar to C:\Windows\System32.
      
      Note On Windows 98-based computers, the Msiexec.exe file is located in the %Windir%\System folder.
   5. On the File menu, click
      Close.
2. Verify the location of the Msiexec.exe file in the Windows registry. To do this, follow these steps:
   
   1. Click Start, click
      Run, type Regedit, and then click
      OK.
   2. Locate and then click the following registry key:
      HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSIServer
   3. In the right pane, double-click
      ImagePath.
   4. In the Edit String dialog box, make sure that the string in the Value data box contains the correct path of the Msiexec.exe file on the hard disk that you located in step 1.
      
      For example, if the Msiexec.exe file is located in the Drive:\Windows\System32 folder on the hard disk, the correct path of the Msiexec.exe file in the Value data box is Drive:\Windows\System32\Msiexec.exe /V. In this example,
      Drive is the drive where Windows is installed.
      
      Note On a Windows 98-based computer, the correct path of the Msiexec.exe file is
      Drive:\Windows\System\Msiexec.exe /V.
      
      Note The /V switch enables verbose logging.
   5. If the
      Value data box does not contain the correct path, make the appropriate changes to correct the path, and then click OK.
      
   6. Quit Registry Editor.
3. Start your computer in Safe Mode, and then register the Msiexec.exe file. To do this, follow these steps:
   
   1. Restart your computer.
   2. Press F8 after you receive the following message:
      
      Please select the operating system to start
   3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode, and then press ENTER.
      
   4. If you use a dual-boot computer or a multiple-boot computer, select the appropriate operating system from the list that is displayed, and then press ENTER.
   5. Log on to the computer.
   6. Click Start, click
      Run, type Msiexec /regserver, and then click OK.
4. Restart your computer in standard mode.

Method 2: Reinstall Windows Installer

1. Start your computer in Safe Mode. To do this, follow these steps:
   
   1. Restart your computer.
   2. Press F8 after you receive the following message:
      
      Please select the operating system to start
   3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode, and then press ENTER.
      
   4. If you use a dual-boot computer or a multiple-boot computer, select the appropriate operating system from the list that is displayed, and then press ENTER.
   5. Log on to the computer.
2. Click Start, click Run, type cmd, and then click OK.
   
3. At the command prompt, type attrib -r -s -h %Windir%\System32\dllcache.
   
   Note On a Windows 98-based computer, type
   System instead of
   System32.
   
   Note On a Windows Server 2003 SP1-based computer, skip this step. Instead, go to step 4.
4. At the command prompt, type
   CD %Windir%\System32, and then press ENTER.
5. At the command prompt, type the following lines, pressing ENTER after each line:
   ren msi.dll msi.old
   ren msiexec.exe msiexec.old
   ren msihnd.dll msihnd.old
6. At the command prompt, type exit, and then press ENTER.
7. Restart your computer in Safe Mode.
8. Update the Windows Installer files on the hard disk to the latest version.
   
   Note On a Windows Server 2003 SP1-based computer, extract the files in the Windows Installer 3.1 redistributable package, and then copy the following files to the %Windir%\System 32 folder on the computer:
   • Msi.dll
   • Msiexec.exe
   • Msihnd.dll
9. Restart your computer in standard mode.