error 1719 windows installer service could not be accessed

Method 1: Start the Windows Installer service 1. Click Start, type Services.msc and press {ENTER} 2. Double-click Windows Installer 3. Set the Startup type of Windows Installer to Manual 4. Click Start to start the service. Note down the error message if any. 5. Click OK. Method 2: Unregister and re-register the Windows Installer to do that follow the steps provided below. 1. Click Start, click Run, type MSIEXEC /UNREGISTER, and then click OK. Even if you do this correctly, it may look like nothing occurs. 2. Click Start, click Run, type MSIEXEC /REGSERVER, and then click OK. Even if you do this correctly, it may look like nothing occurs, or you may briefly see an hourglass. After you run this command, the operation is complete. 3. Try your Windows Installer-based application again. Method 3: Try performing SFC scan on the computer. 1. Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow 2. Type the following command, and then press ENTER: sfc /scannow [The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions.]