topic Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad in AutoCAD Forum

Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

cyborg3dLYS98 — Wed, 24 Jul 2024 10:59:22 GMT

Hi all!

After installing the Autocad 2024, during the first launch of the program, such an error window appears and the Autocad closes.

The same thing happens when you first launch AutoCAD 2012-15 and 2019.

Can you tell me what it could be and how to ensure that the autocad runs without errors?

Just in case I have Windows 10 Pro 64bit operating system on my PC.

Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

paullimapa — Wed, 24 Jul 2024 13:42:50 GMT

Perhaps this thread may help

Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

cyborg3dLYS98 — Fri, 26 Jul 2024 09:48:23 GMT

Unfortunately it didn't help.
I also used the tips from these threads, but they didn't help either.

https://forums.autodesk.com/t5/previous-version-support/this-is-how-to-install-autocad-2015-to-windows-10/td-p/5671933/page/4

https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-fatal-error-e0434352h-at-app-startup/m-p/11118157#M194639

The error keeps appearing when I first start Autocad...

Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

paullimapa — Fri, 26 Jul 2024 10:57:03 GMT

So have you tried uninstalling 2024 and see if that fixes the problem?

Hows about installing 2025 and then the 2025.1 update?

Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

pendean — Fri, 26 Jul 2024 14:00:25 GMT

@cyborg3dLYS98

If you have this issue in AutoCAD 2012-15, 2019, and 2025, the problem is not likely just the software, but your OS (or at least your own login).

First thing to try next:

Force update your Windows10Pro: allow it to install everything it finds. Restart your PC. Test.

Second thing to try:

Log into Window10Pro as an all new login with full admin rights: now test whatever version of AutoCAD you have on that PC. Still facing the same issue?

Third thing to try:

Install on a different PC or laptop, and test again.

Re: Error: CLR exception - code e0434352 (first/second chance not available)" when first starting Autocad

cyborg3dLYS98 — Tue, 30 Jul 2024 11:01:17 GMT

Yes, indeed the problem was in the computer, not in Autocad.

After reinstalling windows 10 22h2 the problem disappeared and I was able to install Autocad 2024. I am happy! Thanks everyone!