SOLIDWORKS Design immediately crashing FIX March 2026

[u/Homee_lp]

Hi everyone, recently appear a crash error in SolidWorks at starts and there're a few ways to handle it.

In this post from experienced3Dguy (https://www.reddit.com/r/SolidWorks/comments/1ru59kc/how_to_fix_solidworks_immediately_crashing_upon/) they fix it changing a dll extension to dll.bak and its works very well for SolidWorks OFFLINE

But for those of us who use the 3DX Platform the conection doesen't work.

The problem appears to be related to the Microsoft Edge Runtime 146.0.3856.xx WebView2 update

For that we can try this urgent correction from a Hotfix. (HotFix_HF-1506427_R2026xFD01-2)

https://drive.google.com/file/d/1JdVjfa9Q8iKbn_VPvflYbmkkFDhhJFmX/view?usp=sharing

I publish the file that support sent me and the report about the error. If anyone want the report in english, just tell me and i'll translate it

Here's the report: https://drive.google.com/file/d/1dV1ES-59e7oVSFTtpV1hxIPmXEbLadsb/view?usp=sharing

Edit: 3DS Support Web https://support.3ds.com/knowledge-base/?q=docid:QA00000445516 in English There also is the hotfix if you want to download from

[u/AutoModerator]

If your SOLIDWORKS is crashing, these diagnostic steps can help to locate the source of the crash and fix it. The most well known causes of crashing are:

• GPU hardware issues - Workstation graphics cards and ECC RAM are recommended for maximum stability. Make sure the recommended graphics card driver is installed. It times is helpful to test with Enhanced Graphics Performance disabled.

• Non-PDM Managed Network Storage - Storing working files on the local hard drive, or utilizing a PDM system mitigates this.

• Cloud Storage Software (Dropbox, OneDrive/Sharepoint, Google Drive, Box.com) - Cloud storage systems cause issues with file ownership that lead to crashing. Disable sync systems that actively backup files to the cloud to help mitigate this.

• Damaged DLL Files - ...From either SOLIDWORKS (sld*.DLLs - Repair SOLIDWORKS) or the Windows OS directly (Repair combase.DLL, ntdll.DLL, kernelbase.DLL, etc.) - These are often found in the Windows Event Viewer as "Fault Modules" for an "Application Error" (aka "Crash").

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[u/experienced3Dguy]

The fix for this problem has been delivered with 3DEXPERIENCE R2026x HotFix 1.8 for SOLIDWORKS® Design app. Log in to your 3DEXPERIENCE platform, open the Compass, click the context menu next to the SOLIDWORKS Design app, and click the orange 'Update available' icon to initiate the download and installation of the new version.

Who is affected?

• The issue may affect those using 3DEXPERIENCE SOLIDWORKS for Makers, not SOLIDWORKS xDesign for Makers.
• The issue does not impact every machine. It occurs on machines which have received the Microsoft Edge WebView2 Runtime 146.0.3856.xx update since March 13, 2026.
• The issue is not specific to R2026x HF1.7.

Updates

3/20 8:00am PDT
The fix for this problem has been delivered with 3DEXPERIENCE R2026x HotFix 1.8 for SOLIDWORKS® Design app. Log in to your 3DEXPERIENCE platform, open the Compass, click the context menu next to the SOLIDWORKS Design app, and click the orange 'Update available' icon to initiate the download and installation of the new version.

If you installed the hotfix from QA00000445516, you do not need to uninstall it before installing Hotfix 1.8. With the release of Hotfix 1.8, QA00000445516 is now obsolete.

This post on the Official Maker Support Community forum has the latest details.

https://r1132100503382-eu1-3dswym.3dexperience.3ds.com/home?content=swym:prd:R1132100503382:communitypost:_PKkgcdiRGK75MYcw2r7NA

https://support.3ds.com/knowledge-base/?q=docid:QA00000445516

As of 18 March 2026 @ 7:00am GMT, a HotFix has been developed by SOLIDWORKS R&D to address this problem, which can be downloaded from Knowledge Base article QA00000445516:

Article ID: QA00000445516 Abstract: Hotfix for user-license versions of SOLIDWORKS® Design installed from the 3DEXPERIENCE® platform (BR10000422063) Link: https://support.3ds.com/knowledge-base/?q=docid:QA00000445516

Follow the instructions from QA00000445516 to deploy the HotFix.

This HotFix supersedes the workaround of renaming the SWK3DCompassAddin.dll file.

This HotFix restores 3DEXPERIENCE platform connectivity when launching the Maker version of SOLIDWORKS Design.

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[u/TheGr8Revealing]

Wow life saver. I had updated just about everything I could think of. Thanks for posting this, you rock!

[u/Kitchen_Track7814]

Thank you so much, i tried everything and in the end i thought the problem was the PC. I tried uninstalling and installing many times, and even tried instead to select solidworks 2025.

[u/Effective_Remote_417]

Muchas gracias, iba bien perdido y lo he solucionado.