A Basic Application Could Not Be Started Wincc 75 Best -

WinCC relies heavily on internal network communication (even on a single PC) using SQL Server and DCOM. Windows Defender Firewall or third-party antivirus software often blocks these "local loopback" communications after a Windows Update.

A very common cause for this specific error message is a corrupt Tag Logging database. If the Quick Start file or the database archive is damaged, the runtime manager crashes immediately.

The “A basic application could not be started” error in WinCC 7.5 is almost always due to permissions, antivirus blocking, license issues, or SQL Server problems. By systematically working through the steps above – with special attention to Event Viewer, antivirus whitelisting, and license validation – the issue can be resolved without reinstalling the entire engineering environment.

Estimated resolution time: 15–45 minutes depending on root cause. a basic application could not be started wincc 75 best

Troubleshooting "A Basic Application Could Not Be Started" Error in WinCC 7.5

WinCC (Windows Control Center) is a popular human-machine interface (HMI) software used for monitoring and controlling industrial processes. However, users may encounter errors while starting a basic application in WinCC 7.5, such as "A basic application could not be started." In this article, we will guide you through the possible causes and provide step-by-step solutions to resolve this issue.

Causes of the Error

Before diving into the solutions, it's essential to understand the potential causes of the error:

Step-by-Step Solutions

To resolve the "A basic application could not be started" error in WinCC 7.5, follow these steps: WinCC relies heavily on internal network communication (even

Set UAC to lowest level:

If this happens with a specific project: