What You Can Do about Msiexec.exe Error

Published: 25th August 2010
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"Runtime Error!

Program: C:\WINDOWS\system32\msiexec.exe

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information."

You might have seen error messages like the above when you start your computer or open applications. It indicates that the msiexec.exe file is missing or corrupt.

We strongly suggest that you run a quick exe error scan for your PC to check for exe errors.

What Is Msiexec.exe?

Msiexec.exe is a process that is designed for the Windows Installer Component. And it is used by newly installed programs or applications which use MSI (Windows Installer package files). The legitimate msiexec.exe file is located in folder C:\Windows\System32 or in the subfolder of C:\Program Files.

Msiexec.exe is generally considered as a system file, but it could be a security threat when it is infected by unsafe programs like virus, Trojan or spyware. When the file gets infected, the attacker would probably control your compute from a remote location, stealing usernames and passwords, or capturing screenshots. These sorts of files would keep themselves from being found by applying names that are similar to the legitimate files. Therefore, you should pay extra attention to the process that your system is running.

How to Fix Msiexec.exe Error?

Re-register your Windows Installer

1. Check for the location of msiexec.exe
2. Go to Start > Search > type in "msiexec.exe"
3. Copy the entry > Close

Check the location of msiexec.exe in the registry
1. Go to Start > type in "regedit" > press Enter
2. Find the registry "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSIServer"
3. Make sure the entry of the file looks exactly the same as you copied previously
4. Click Exit

Reboot your computer in the Safe Mode

1. During startup, press F8 when asked to select the operating style
2. Select Safe Mode and log in
3. Go to Start > Run > type in "msiexec/regserver" > press Enter
4. Reboot your computer

Alternative Solution:

Re-install the Windows Installer

1. Go to Start > Run
2. Type in "cmd" > press Enter
3. Type in "attrib -r -s -h drive:\%Windir%\system32\dllcache" > press Enter
4. Then type the following command in the open box > press Enter
ren msi.dll msi.old
ren msiexec.exe msiexec.old
ren msihnd.dll msihnd.old

5. Type in Exist > press Enter
6. Restart your computer and upgrade the Windows Installer to the latest version
7. Restart your computer

To ensure the security and efficiency of your PC, get our EXErrorsFix to fix Msiexec.exe errors in minutes.

Mona has provided some solutions of Exe errors in this article. EXErrorsFix will help you repair Exe errors in an easy and effective way.

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