Software & Apps Windows How to Fix the 'Problem With This Windows Installer Package' Error Solutions for error-free installations By Brad Stephenson Freelance Contributor Brad Stephenson is a freelance tech and geek culture writer with 12+ years' experience. He writes about Windows 10, Xbox One, and cryptocurrency. our editorial process Facebook Twitter LinkedIn Brad Stephenson Updated January 22, 2020 Windows The Ultimate Laptop Buying Guide Tweet Share Email Getting a Windows Installer package error message isn’t an unusual occurrence on Windows 7, Windows 8, or Windows 10. While the problem can be hard to pinpoint, the good news is this Windows Installer package problem, sometimes referred to as an Error 1722, isn’t a reason to panic and is, in fact, a rather small, though still annoying, computer problem. How the Windows Installer Package Errors Appears Windows Installer package errors often appear as one of the following or a combination of several within a system popup warning message. The Windows Installer Service could not be accessed.ERROR 1722 There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected.Windows Installer Service couldn't be started.Could not start the Windows Installer service on Local Computer. Error 5: Access is denied. Cause of Windows Installer Package Errors When you get an alert or warning message telling you there's a problem with your Windows installer package, this usually means a program isn’t running properly. This can be caused by programs or apps conflicting with one another, a virus or malware infection, a lack of sufficient system memory to power all of the running apps, or a graphics driver error. Alengo/E+/GettyImages Windows installer package errors can also be caused by seemingly random system glitches with no major problem behind them at all. How to Fix a Problem With Windows Installer Package Here are some of the best things to do when your Windows computer tells you there’s a problem with your Windows Installer package. Restart your computer. Restarting Windows can fix a variety of problems including Windows Installer package errors. Update Windows. Performing a Windows update will scan your device during the update process and fix a number of conflicts that may be present. The update process will also update the operating system and drivers which could repair the cause of the Windows Installer package error. Update your Windows apps. If you haven’t updated your apps, now is the time. In addition to adding new features, app updates can also improve security and squash any system conflict bugs. Run a Windows Troubleshooter. Go to Settings > Update & Security and run the Program Compatibility Troubleshooter and Windows Store Apps Troubleshooter. Both will scan and provide solutions for any app problems that are making this error message occur. Repair the app. On Windows 8 and 10, right-click an app’s icon or tile, then select More > App settings > Repair. This will scan just the app and fix any errors in its coding. On Windows 7, you’ll need to do this from Control Panel > Uninstall a program, right-click an app name, then select Change > Repair. The Repair option may not appear for all apps. Reset the app. Resetting an app is a way of refreshing it without having to delete it completely and reinstall it again. The process can fix any problems you’re experiencing. To do this, right-click the app’s icon and select More > App settings > Reset. The option is directly below the Repair option. Resetting an app will delete all of its local data. Reinstall the app. If you know what app is causing the conflict, uninstall it and then reinstall it again as its installation may have become corrupted or an important file may have been deleted. Disable some start-up apps. Press Ctrl+Alt+Del, then select Task Manager > Start-up. The apps on this list are the ones that automatically start up and run in the background when you turn on your computer. They can use up resources and cause conflicts. To stop the ones you don’t need running in the background from doing so, select their name, then select Disable. Run Disk Clean-up. From File Explorer, select This PC, right-click your main hard drive, select Properties, then select Disk Clean-up. This will remove unnecessary files and free up more space for apps to use. Check if the Installer Service is running. Open the Start Menu, select Run, type Services.msc, and then press Enter. Double-click the Windows Installer icon, then set the Startup type of Windows Installer to Manual. Select Start, then select OK. Reregister the Windows Installer. In Windows 7, open the Start Menu and select All Programs > Accessories > Run. In Windows 8 and 10, open the Start Menu and simply type Run. Type msiexec /unregister and select OK. Now, do the same again but this time type msiexec /regserver and select OK.