Some times when we try to install a program, we will get an error ”The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.”

Problem:

Some times when we try to install a program, we will get an error ”The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.”

Cause:

The registry under

“HKEY_lOCAL_MACHINE/SYSTEM/CurrentControlSet/services/msiserver”

has been corrupted.

Solution:

The solution is deleting this registry key and importing the msiserver registry key from another working machine. Restart computer then issue will be gone.