I deinstalled and installed the software like 5 times and it wont start. It only shows this window and disappears [image] i already tried installing the newest Technology guard, but it says that theres already a newer version and afterwards it closes the installation. I also deleted every single…

Hello Yannic Please ensure that .net framework 3.5 is installed and activated. You can check in windows features: [image] Not that this might justify or explain your issue, but I would always use latest AS Version, so 4.12.9. Further please also check with your IT, if eventually your Antivirus…

Hi @yaree98 , Could you check this post created for the same issue? [image] B&R Automation Studio won't open. It briefly appears in Task Manager and then closes B&R Software & Runtime Automation Studio Task Manager opens and closes after a few seconds. I uninst…

i did every step already, but cant open or find the Technology Guard.

Interesting… Do you see the same issue on the Windows Event logger? [image] I’m quite new of this logger [image]

removed my comment, not relevant for the investigation.

Hi, You can try something if you have the license key of AS somewhere and you didn’t have other licenses using codemeter. It’s not the best way to solve it for sure: Using Task Manager locate the service CodeMeter.exe [image] Right click → Stop Go to folder C:\ProgramData\CodeMeter\CmAct some fi…

removed my comment, no relevant for the investigation.

This did not work somehow :confused:

Did you was able to delete the files?

yes (asdasdasdasdsasdasdasdasdasdsad (i have to write 20 letters))

B&R Automation Studio 4.12 wont start

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valerio.manenti (Valerio Manenti) January 14, 2026, 9:58pm 2

Hi @yaree98 , Could you check this post created for the same issue?

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B&R Automation Studio 4.12 wont start

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