topic Re: AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h in AutoCAD Forum

AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h

Anonymous — Mon, 01 Mar 2021 17:56:09 GMT

I had the AutoCAD 2020 student version installed and 'FATAL ERROR: unhandled access violation reading 0x0028 exception at 591b4a11h' message appeared while I was working and AutoCAD crashed and closed. Then I installed AutoCAD 2021, and when I relaunched the program, the same thing happened. Please help as I am not able to find the solution and I have work due to submit.

Re: AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h

rapidcad — Mon, 01 Mar 2021 19:03:23 GMT

Hi. without more details it would be hard to say what is wrong. Are both installations the "Student" version? Do you have a valid student version license? If so, it would be less problematic to uninstall 2020 first, then install 2021, but usually they coexist just fine on the same computer. However, since you already had an error and now have two versions installed, it is possible that a corrupt file is being referenced by both versions.

I would go to your Windows "Apps and Features", select "Programs and Features" in the upper right and scroll down to the 2020 installation and right click on it and select the "change" option and select "Repair or reinstall", then "Repair".

Then I would repeat the same steps with the 2021 version and try launching 2020 again to see if it works.

If those ideas fail you should check to see if you have an AMD video graphics processer . If so it is likely a bad driver. See the following to find the way to fix that.

https://forums.autodesk.com/t5/autocad-forum/fatal-error-unhandled-access-violation-reading-0x0028-exception/td-p/9282635

and if that isn't it, maybe this:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/FATAL-ERROR-Unhandled-Access-Violation-Reading-0x0028-Exception-while-launching-AutoCAD.html

Re: AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h

pendean — Mon, 01 Mar 2021 19:33:15 GMT

Do these things listed here in that order in 2020 (then in 2021 if you still need it) https://forums.autodesk.com/t5/installation-licensing/fatal-error-unhandled-access-violation-reading-0x0028-exception/m-p/9241661#M234086

Re: AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h

Anonymous — Mon, 01 Mar 2021 20:14:10 GMT

Thank You. I Uninstalled both 2020 and 2021 versions. Deleted all the
corresponding files and then installed 2021 version and it started working
fine.

Re: AutoCAD - FATAL ERROR : Unhandled access violation reading 0x0028 exception at 591b4a11h

rapidcad — Mon, 01 Mar 2021 20:20:10 GMT

Glad to help. I would suggest checking for updates and installing them as well if you have not done so.