: Ensure your version of Windows 10/11 is compatible with WinCC V7.5. For instance, users have reported that WinCC 7.5 SP2 on Windows 10 Pro 22H2 specifically requires to function correctly. Avoid Parallel Installations
or underscores (_), as these can break the SQL instance connection used by WinCC. sieportal.siemens.com 3. Reset and Repair WinCC
: This error frequently occurs when attempting to create projects via Remote Desktop (RDP) . Siemens recommends performing development tasks locally rather than through RDP.
If WinCC crashed previously, background processes may still be running, preventing a new instance from starting. The operating system sees these "zombie" processes and thinks the project is already active.
To resolve the "A basic application could not be started" error in WinCC 7.5, follow these step-by-step troubleshooting steps: a basic application could not be started wincc 75 best
| Step | Action | Time | |------|--------|------| | 1 | Run as Administrator | 10 sec | | 2 | Restart SQL Service (services.msc) | 30 sec | | 3 | Check Dongle / License Manager | 30 sec | | 4 | Delete cache folders ( GRACS , NO_MSG ) | 20 sec | | 5 | Restart PC | 2 min |
If the error occurs only for a specific project but other projects open fine, the project database cache is likely corrupted.
Open Windows ( compmgmt.msc ) and go to Local Users and Groups > Groups .
Avoid hard powering down the PC while the WinCC Runtime is active. Always deactivate the project via WinCC Explorer before shutting down. : Ensure your version of Windows 10/11 is
Follow these verified steps in order to diagnose and resolve the initialization error.
The error message is one of the most frustrating obstacles when working with Siemens SIMATIC WinCC V7.5, especially when launching the runtime environment. This error generally indicates that WinCC cannot initiate vital underlying services, frequently stemming from licensing conflicts , Windows compatibility issues , or network adapter misconfigurations .
Navigate to the and verify that your WinCC V7.5 RC or RT license is listed as "Valid" (indicated by a green icon). Press Win + R , type services.msc , and press Enter. Locate the Automation License Manager Service .
Go to the WinCC installation folder (typically C:\Program Files (x86)\SIEMENS\WinCC\bin ) and run the Reset_WinCC.vbs file. Action: Restart your computer. 2. Verify SIMATIC Security Controller sieportal
: WinCC relies heavily on a specialized background SQL Server instance. If the database services freeze or fail to communicate with the logged-in Windows user account, the entire environment blocks execution. Step-by-Step Solutions to Resolve the Error 1. Verify Licenses in Automation License Manager (ALM) The error explicitly prompts a license check.
: If the computer name contains special characters (like underscores), the SQL instance may install incorrectly, leading to this error .
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.