Msiexec.exe is part of Windows Installer, more precisely is executable to him. Windows Installer (or Microsoft Installer) is Vital component of Windows systems modern (XP, Vista, 7) this being the "engine" for all installations, updates and uninstallations of applications/programs.
Msiexec.exe usually runs only during the installation/uninstall of an application or during an update. If you notice that this process is running continuously (check in Task Manager), even if you have no installation application, open System Services and check if you've set up Windows Installer to run automatically, and change it again in Manual.
To be sure that The Msiexec.exe process It is a legitimate one, check if its location is in the folder C:WindowsSystem32. If you discover this process in another location, it is very possible to be about a program malware (virus, trojan, spyware etc.)., in which case It is recommended to perform a complete scan used in updated and efficient antivirus!
If it happens to defend you on the monitor MESSAGES ERROR related to msiexec.exe During the installation of a program ("The Windows Installer service could not be accessed"), It means that The MSIEXEC.Exe process has been disabled (Check all in System Service which is the status for Windows Installer) or as The Msiexec.exe file was deleted (most likely by a virus, to avoid installing an antivirus) from C: Windows System32. If you are in your second situation, it will be necessary reinstall Windows Installer to solve the problem.
Cum reinstalam Windows Installer
First of all you need to rename damaged files Windows Installer (if they exist) and download Compatible version with your operating system (currently Windows Installer 5.0, compatible with Windows 7 It is found only on its installation DVD), then follow the steps below:
- open Command Prompt with rights Administrator (taste cmd in Search program and files in Start Menu, click-right click on it and select Run as Administrator from the menu)
- in Commend Prompt taste cd %windir%System32 You have given ENTER.
- taste command attrib -r -s -h dllcache You have given ENTER.
- taste command REN MSI.DLL MSI.OLD You have given ENTER.
- taste command ren msiexec.exe msiexec.old you give ENTER
- taste command ren msihnd.dll msihnd.old You have given ENTER.
- taste exit and give Enter again :)
- Restore the system
- Install the version Windows Installer Previously downloaded and then restart the system once again.
Download Windows Installer 4.5 (XP compatible, Server 2003, Vista and Server 2008)
Use: If The error appears on a Windows 7 operating system, Enter the DVD-ROM installation DVD and then restart to the system. After Restart you will be asked if you want to install Windows 7 or repair the system already installed. Select Repair your computer. Succes!
