How to Fix SAPLOGON.EXE Crashes After Update KB5055523

SAPLOGON.EXE Crashes After Update KB5055523

The issue, SAPLOGON.EXE crashes after update KB5055523, is related to conflicts between the update and certain system files, especially ntdll.dll, which is a critical Windows system file. Windows 11 PCs have reportedly experienced this crash after the update.

The error details usually contain the exception code 0xc0000409, which indicates a stack buffer overflow or similar problem. Users have tried various troubleshooting steps, such as running SFC and DISM commands, updating or reinstalling SAPGUI, but in many cases, uninstalling the update is the most effective solution. Let me introduce these ways to you to fix the “SAP Logon for Windows is not responding” error.

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Fixes for SAPLOGON.EXE Crashes After Update KB5055523

Fix 1: Uninstall the Update KB5055523

Saplogon exe crashes after update kb5055523 download, and system updates are reported to cause compatibility issues with some applications, such as SAPLOGON.EXE. These issues may cause crashes or errors that disrupt your workflow. It is usually recommended to uninstall the update. Removing this update can restore system stability and allow the affected applications to function normally.

Via the Settings app.

Step 1: Press the Win + I keys to open the Settings app.

Step 2: Click on Update & Security > Windows Update.

Step 3: Click on View update history > Uninstall updates.

Step 4: Find the KB5055523 update, right-click on it, and choose Uninstall.

Follow the on-screen instructions to finish the uninstallation.

Via Command Prompt.

Step 1: Type Command Prompt in the Windows search box, and press the Shift + Ctrl + Enter keys to open the utility as an administrator.

Step 2: When the UAC window pops up, click on Yes to go to the next window.

Step 3: Type wmic qfe list brief /format:table and press Enter to view the installed updates.

Step 4: Find the KB5055523, type wusa /uninstall /kb:5055523, and press Enter to uninstall it.

If you don’t want to uninstall the update, then try the next steps until the fix is ​​released.

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Fix 2: Check and Repair Corrupted System Files

The problem with SAPLOGON.EXE crashing after installing update KB5055523 might be related to a conflict between the update and system files, such as ntdll.dll. In this case, you can try to check and repair damaged system files. Here is how to do it by SFC and DISM.

Step 1: Type cmd in the Windows search box, right-click on Command Prompt, and choose Run as administrator.

Step 2: Type DISM.exe /Online /Cleanup-image /Restorehealth in the window and press Enter.

Step 3: Wait for the previous step to be completed. Type sfc /scannow and press Enter.

Fix 3: Update SAP GUI

The SAPLOGON.EXE crash issue may be related to the compatibility between Windows Update and SAP GUI. Try installing the latest SAP GUI patch or service pack to ensure it is compatible with the latest Windows updates. Here are the steps to update it.

Step 1: Visit the SAP Support Portal. Go to the SAP Software Download Center and log in to your S-user ID account to access the relevant resources.

Step 2: Download the latest patch or version. Find the latest version or patch of SAP GUI in the Download Center and download it to your device.

Step 3: Install the update. Run the downloaded installer and follow the on-screen prompts to complete the update process.

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Fix 4: Reinstall SAP GUI

If the update doesn’t work, you might as well reinstall SAP GUI. Do as follows.

Step 1: Uninstall the old version. Open the Control Panel and select Programs and Features. Find SAP GUI, right-click on it, and select Uninstall.

Step 2: Download the latest version. Go to the SAP Support Portal and log in to your S-user ID account. In the Software Downloads section, find the latest version or patch of SAP GUI and download it.

Step 3: Install SAP GUI. Double-click the downloaded installation package and follow the on-screen prompts to complete the installation. If necessary, apply the latest patch to ensure the stability of the software.

Step 4: Configure SAP Logon. After the installation is complete, open SAP Logon and set the server connection parameters to access your SAP system.

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Wrapping Things Up

In summary, when SAPLOGON.EXE crashes after update KB5055523, you can try uninstalling the relevant updates, updating the SAP GUI, or repairing system files to fix it. If the problem persists, it is recommended to get professional help.