Over 6 million PCs
optimized by our top-selling
utility product
optimized by our top-selling
utility product
System Requirements
- Windows 10, 8.1, 7, Vista & Windows XP
- Intel CORE 2 Duo (2 GHz) or equivalent
- Memory (RAM): 1.5 GB
- Disk space: 2 GB free space
- Internet Explorer 8 or higher
Windows Installer errors
Fix Windows Installer (.msi) errors.
Get it working again with PC TuneUp Maestro! Our comprehensive PC health scan will check your computer hardware, software and settings to get things working again.
A Few Minutes Can Save You Hours of Frustration
The Problem
When installing an application, Windows displays an error message: “The Windows Installer service could not be accessed”. Exiting all applications and restarting Windows doesn’t solve the problem. Or, Windows shows the error message: “Your computer requires an update to the Windows Installer Service”. It is also possible that Windows Installer fails and exits after displaying an error messages including a specific error code. As a result your PC is no longer able to install or update any applications at this point.
The Solution
PC TuneUp Maestro fixes Windows Installer errors using a comprehensive approach. First, the Repair tool checks the integrity of the Windows Installer Service, which is the core component responsible for all installation services. If the Windows Installer Service is missing or damaged, PC TuneUp Maestro will repair or restore the Windows Installer Service to its original state. Second, the Windows Installer Service will be registered so that it is given a fresh start. This ensures that when it is required, the Windows Installer Service will be easily located and invoked by the system. Third, PC TuneUp Maestro enables the Windows Installer Service so that it can always be ready when needed. Using this unique approach, PC TuneUp Maestro can fix almost all types of Windows Installer errors.
Download instructions
- Click Download and Fix.
- Click Run or Open and install as directed.
- Click Fix-it Center from the main menu.
Diagnose & Fix Computer Problems with Ease
Simple to use, yet incredibly effective, PC TuneUp Maestro represents the most advanced suite of PC maintenance software tools available today. Using advanced error analysis and resolution technology, PC TuneUp Maestro fixes, cleans and optimizes your PC, giving it peak performance and stability.
PC TuneUp Maestro Fix-it Center
Tired of dealing with repeated PC errors or ongoing performance issues? PC TuneUp Maestro Fix-it Center provides effective solutions to deal with specific PC stability and performance issues. Directly working with customers, our Technical Support Team and Development Team work closely to keep track of common PC problems, design and implement solutions, and make them available to you through Fix-it Center.