Before taking any drastic measures, follow this structured, diagnostic approach. It’s best to start with the least invasive solutions first.
Last updated: For WinCC V7.5 SP2 and later. Always refer to Siemens official documentation for your exact version and patch level.
When WinCC cannot start this core process, it usually means one of three things:
The Siemens Automation License Manager (ALM) service failed to validate a valid configuration (RC) or runtime (RT) license key. This can happen if the license is missing, corrupted, or if an outdated version of the Automation License Manager is installed. 2. Operating System and Service Pack Incompatibilities a basic application could not be started wincc 75
Overzealous security software might block essential WinCC background processes like CCProjectMgr.exe . Step-by-Step Troubleshooting and Solutions
Is this happening on a , Client , or Single-user station?
Go to: C:\Program Files (x86)\Siemens\WinCC\bin (default path). Run or the Reset_WinCC.vbs script. Before taking any drastic measures, follow this structured,
Navigate to the tab and click on your local drive (usually C: ).
Before changing settings, you need evidence of what failed.
Have any or new software packages been installed right before this error started? Share public link Always refer to Siemens official documentation for your
WinCC requires specific Windows user rights to execute its background processes.
If you have tried and the error still appears, the final resort is an in-place upgrade repair of WinCC 7.5 (run Setup.exe > Repair) or a full Windows reinstallation. However, in 95% of real-world cases, disabling UAC and running as administrator solves the problem instantly.
Cross-reference your OS build with the official Siemens Compatibility Tool.
: Ensure your Windows version matches the Siemens Compatibility Tool requirements for WinCC 7.5.