It appears that the included SquareLine Studio certificate that is part of the downloaded EXE, expired at the end of June 2025. Trying to install the download causes an Application Error dialog box to appear stating "The application was unable to start correctly (0xc0000005) Click OK to close the application.
Any suggestions getting around this problem?
Hi, it appears you’re running into a common and frustrating error! The 0xc0000005 error on Windows 11, often referred to as an “Access Violation” error, isn’t directly caused by the expired certificate of the SquareLine Studio installer. While the expired certificate is a valid concern for security and verification, it typically wouldn’t prevent the application from starting in this specific way.
The Hungarian response you received is correct in suggesting that the problem likely lies with your system’s drivers or missing software components. The 0xc0000005 error usually indicates that a program is trying to access memory that it shouldn’t, which can be triggered by several underlying issues.
Here are some of the most common causes and steps you can take to fix the problem:
Common Causes and Solutions
Outdated or Corrupt Graphics Drivers: This is a very frequent culprit. The application may be trying to use a function of your graphics card that the current driver doesn’t support correctly.
Solution: Go to the website of your graphics card manufacturer (NVIDIA, AMD, or Intel) and download the latest drivers for your specific model. Don’t rely on Windows Update for this, as it often provides generic or outdated versions.
Missing or Outdated DirectX: SquareLine Studio, like many graphical applications, relies on DirectX. If you have an older version or some of its files are corrupt, this error can occur.
Solution: Download and run the DirectX End-User Runtime Web Installer from Microsoft’s official website. This will scan your system and install any missing DirectX components.
Data Execution Prevention (DEP): This is a Windows security feature that can sometimes be overly aggressive and block legitimate installers.
Thank you for the detailed reply. Unfortunately I still am unable to install the exe.
I have verified that I am running the latest NVIDIA drivers for my GeForce GTX 2060 graphics card. Here is the output of DxDiag:
I have turned off DEP for all programs.
The symptoms are:
I run SquareLine_Studio_1.5.3_Setup.exe as Administrator and get prompted by the User Account Control Dialog/Install screen “Do you want this app to make changes to your hard drive?” I reply Yes. And that’s it…the install appears to terminate at some point but I do NOT see any additional install prompts.
The Event Viewer Application log does however display an Informational message - “Application popup: SquareLine_Studio_1.5.3_Setup.exe - Application Error : The application was unable to start correctly (0xc0000005). Click OK to close the application.” (The popup never gets displayed though)
Any other suggestions?
Does your downloaded sha256(zip) and sha256(exe) match? With 7zip you can right-click zip → 7zip → CRC SHA → SHA256. Here’s mine:
$ sha256sum.exe ~/Downloads/SquareLine_Studio_Windows_v1_5_3.zip
508dce2d33ba238464e032522b50f4e5ebaa62620a90dcf87bbd486d63f0693f
$ sha256sum.exe ~/Downloads/SquareLine_Studio_1.5.3_Setup.exe
e6d0576cc883e8ef65991fb17e4af210c1f03f5a69d1d1baafdfe28f521a5572
Thank you, Richard.
My 7-Zip SHA256 values of the ZIP and EXE match yours.
I use 3 Windows 11 PC’s in the office. Two of the PCs are able to download/install SquareLine Studio V1.5.3 . My primary development PC is the one that refuses to install V1.5.3 which is why I’d like to have this resolved.
What is interesting is that SquareLine Studio V1.3.0 is the only version of the downloads that installs correctly on the development PC. All other versions exhibit the identical failure. What is different about V1.3.0? I have no other issues on the development PC with any other application download/install.
-rob
Very strange Rob. Any virus-scanner differences between the PCs, if so maybe try disabling it during install? (completely generic guess here).
Maybe check and compare Visual C++ redist versions on your PC and on working…