Windows Installer service failed to start!

The Fix It "My Computer-manage-Services" list does not have the Windows Installer service option. Start, or reboot.

Can run Msiexec/unregister to stop this service,

Run Msiexec/regserver again, this will appear in the list of services,

The MSI file can be installed by double-clicking to adjust its status to Automatic or manual startup (which is different, and does not need to restart after "auto").

Manually register Msi.dll, run regsvr32 msi.dll There may be%windir%\system32\msiexec.exe infection, such as disk drive, d.dll and other viruses,

By comparing its file size or by looking at the file's modification time.

To replace the Msiexec.exe with the Msiexec.exe in the Dllcache cache, it is best to extract the replacement in a DOS or PE environment.

If the above cannot be resolved, you can choose to reload Windows Installer.

The installation package is downloaded. Before reloading, delete the%windir%\system32 and%windir%\system32\dllcache two folders under Safe Mode respectively Msi.dll,msiexec.exe,msihnd.dll three files (rename also can)

Windows Installer service failed to start!