The Windows Installer Service could not be accessed.If you ever encounter this error while installing or removing windows application, try to re-register windows installer component.
This can occur if you are running Windows in safe
mode, or if the Windows Installer is not correctly
installed. Contact your support personnel for assistance.
1. Press shortcut key to Run - Windows button + R
2. Type in " msiexec /regserver" (without quote)
3. Press enter
Try to install/remove software again. Hopefully that works :)