AutoCAD Mechanical General Discussion

AutoCAD Mechanical General Discussion

Posts: 12
Registered: ‎03-05-2012
Message 1 of 3 (405 Views)

RE: AutoCAD Mechanical 2014 FATAL ERROR

405 Views, 2 Replies
07-03-2013 02:49 AM



I am having a problem whereby at least 2 times a day my autocad mechanical 2014 is crashing giving me an error as below:

'FATAL ERROR: Unhandled Access Violation Reading 0x0ab0 Exception at e93f05b6h'


The error have occured an number of times when switching tabs but other times have been completely random.


Can anybody help? I have lost so much work due to this.







Product Support
Posts: 70
Registered: ‎09-15-2008
Message 2 of 3 (371 Views)

Re: RE: AutoCAD Mechanical 2014 FATAL ERROR

07-04-2013 07:06 PM in reply to: jhough12

Hi jhough12,


Usually, fatal error is due to:

  • Corrupted installation or Windows user profile
  • Outdated graphics card driver
  • Anti-virus or security software limiting user permissions

You can apply several methods as below:


Firstly, please check below points:


  • Install the latest product updates:
  • Install the latest Windows updates
  • Install the latest graphics card updates
  • Temporarily disable any anti-virus or security software
  • Set UAC (User Account Control) to the lowest level
  • Disable Windows 3GB switch if in use
  • Try log in as a different Windows user account or new local administrator account
  • Try Windows Diagnostic mode (Enable Windows Installer and FLEXnet Licensing services) 

Secondly, I would recommend you to uninstall/reinstall your product completely. This will mostly fix any issues from corrupted installation. Please refer to the following TS:


How to remove all Autodesk products from a Windows system


Inchul Lee
Product Support
Posts: 668
Registered: ‎09-30-2007
Message 3 of 3 (345 Views)

Re: RE: AutoCAD Mechanical 2014 FATAL ERROR

07-16-2013 12:34 AM in reply to: jhough12



Can you check whether you have installed a certified graphics driver. Some drivers can create such fatal errors. You can download the right one from the link below,


You may also want to try the following solutions and see whether it helps.


Turn off hardware acceleration,


Hope it helps. Do send me a screenshot of the fatal error, if you still reproduce the issue.

Vinod Balasubramanian
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