Msiexec.exe It is part of Windows InstallerExactly is executable thereof. Windows Installer (or Microsoft Installer) is vital component of systems Windows moderne (XP, Vista, 7) this being the “engine” for all installations, updateapplications and uninstallations / programs.
Msiexec.exe usually runs only during the installation / uninstallation of an application or during a update. If you notice that this process runs continuously (check in Task Manager) Even if you have no pending application installation, open System Services and check if you accidentally set Windows Installer automatically run, and change it again Manual.
To be sure msiexec.exe process is sound, check that its location is in the folder C: \Windows\System32 \. If you find this process in another location, it is likely to be about a malware (virus, trojan, spyware etc.)., in which case it is recommended to perform a complete scan and updated antivirus effective in folosid!
If it happens to appear on the monitor Error messages about msiexec.exe during installation program ( "The Windows Installer service could not be accessed"), it means that msiexec.exe process has been disabled (check all in System Service which is the status for Windows Installer) or as msiexec.exe file was deleted (most likely a virus, to avoid installing an antivirus) from C: \Windows\System32. If you are in the second situation, it will be necessary resettlement Windows Installer to solve the problem.
How to reinstall Windows Installer
First you need to rename the corrupted files Windows Installer (If they exist) and download compatible version Your operating system (currently Windows Installis 5.0Compatible with Windows 7 found only on the DVD to install it), then follow the steps below:
- open Command Prompt with rights Administrator (type: cmd in Search programs and files in Start Menu, Right click on it and select Run ace Administrator menu)
- in Commend prompt enter cd% windir% \System32 and give Enter.
- type the command attrib-r-s-h dllcache and give Enter.
- type the command Msi.dll reindeer msi.old and give Enter.
- type the command ren msiexec.exe msiexec.old and give Enter
- type the command msihnd.dll reindeer msihnd.old and give Enter.
- enter exit and give Enter one more time :)
- restart the system
- install version Windows Installer previously downloaded and then restart the system once more.
Download Windows Installer 4.5 (XP, Server 2003, Vista and Server 2008 compatible)
Note: In case of the error appears on an operating system Windows 7, insert the installation DVD into the DVD-ROM and then restart the system. After the restart you will be asked if you want to install Windows 7 or to repair the already installed system. Select Repair your computer. Success!
