A Basic Application Could Not Be Started Wincc 75 //free\\ Jun 2026
If the error persists, you may need to uninstall WinCC and the MS SQL Server instance entirely before performing a fresh installation. Ensure you are not installing via RDP (Remote Desktop) or with an active virus scanner. 5? Possible causes for "Reset_WinCC.vbs" - SiePortal
: Ensure the software was not installed via Remote Desktop (RDP) or while an active virus scanner was blocking files. Quick Fix Steps
WinCC relies on specific local user groups to execute background processes. a basic application could not be started wincc 75
This reduces Windows security. Only do this on isolated industrial networks (PCS 7 / Plant networks).
WinCC 7.5 cannot launch without its dedicated SQL Server instance. Press Win + R , type services.msc , and press . Scroll down to find SQL Server (WINCC) . Check its status: If it is stopped, right-click it and select Start . If it is running, right-click it and select Restart . Ensure the Startup Type is set to Automatic . 4. Delete Project Lock Files If the error persists, you may need to
user wants a long article about the error "a basic application could not be started wincc 75". I need to provide a comprehensive guide covering causes, solutions, troubleshooting steps, and preventive measures. To gather this information, I will perform several searches simultaneously, focusing on different aspects of the error. search results show many Siemens Industry Support entries. I need to open several of these to gather detailed information on causes, solutions, and troubleshooting steps. I will open results 0, 1, 2, 3, 4, 5, and 7 from the first search, and also results 0, 1, 2, 3, 4, and 5 from the second search. have gathered information from multiple Siemens support forums and other sources. The error "a basic application could not be started" in WinCC 7.5 has several causes, including SQL Server issues, licensing problems, software conflicts, .NET Framework issues, network configuration, and corrupted DCF files. I will structure the article as a comprehensive guide. The structure will be: an introduction explaining the error and its core meaning, a detailed breakdown of root causes, a comprehensive troubleshooting checklist, step-by-step solutions categorized by root cause (covering SQL Server, conflict cleanup, DCF file management, licensing, .NET, network, and more), a maintenance and prevention section, and a final FAQ summarizing key causes and solutions. I will cite the sources appropriately throughout. error message is notorious among engineers, yet it is often misunderstood. This article provides a definitive technical guide to diagnosing and resolving the "A basic application could not be started" error in WinCC 7.5.
Follow these steps in order to isolate and fix the application startup failure. 1. Run the WinCC Security Controller Possible causes for "Reset_WinCC
The standard error message gives which “basic application” is at fault. A watchdog tool could cut troubleshooting time from hours to seconds .
The error sometimes lives in a shared component used by TIA Portal and WinCC.
Open the via the Windows Start menu.
When WinCC 7.5 starts, it initializes a complex ecosystem of database managers, licensing services, and security protocols. The "basic application" failure usually stems from one of the following issues:
