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windows 8.1

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=9751
Printed Date: 31.May.2026 at 21:16


Topic: windows 8.1
Posted By: gbisset
Subject: windows 8.1
Date Posted: 27.Oct.2013 at 15:55
I recently updated my OS from windows 8 to 8.1. However as soon as i done this all of my Autodesk software stopped working. When starting up the software i received an error message stating "FATAL-ERROR UNHANDLED ACCESS VIOLATION READING 0x0020 ECEPTION AT 4F864c12h". This message occurs when the program is "loading plug-ins acmgd.dll". I have tried uninstalling several times but with no luck. Can anybody help please?   


Replies:
Posted By: John Connor
Date Posted: 27.Oct.2013 at 16:48
You did here that there were some reported problems with the 8.1 update didn't you?

I would not have uninstalled/reinstalled.

First I would have tried finding a Windows Restore point that pre-dated the install of the 8.1 update.

If I did not have one then I would have tried a REPAIR of the AutoCAD installation.

If that did not work then I would have done a REINSTALL.

Finally if that did not work I would have followed AutoDesk's recommended advice for preparing one's system for a clean install which is key to a REINSTALL.

Did you at least do the last one?




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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: gbisset
Date Posted: 27.Oct.2013 at 16:56
I did not realize there was an issue with the update until i installed it. 
I followed the steps on the autodesks website regarding a clean uninstall but the problem still persisted. I have the disks to re install windows 8 but this involves a full system recovery which is last resort.

Posted By: John Connor
Date Posted: 27.Oct.2013 at 18:19
Did you search for the error message on the AutoDesk website?


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: gbisset
Date Posted: 27.Oct.2013 at 23:54
yes but with no luck. Through doing some research I have came across a number of people having the same problem with the windows 8.1 update. I have just yet to find any solutions relating to CAD and Revit  

Posted By: John Connor
Date Posted: 28.Oct.2013 at 10:33
Didn't MS post a new version of the update and didn't they also offer up a fix for systems that were negatively affected by the firtst 8.1 update?


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: bahey.a
Date Posted: 12.Mar.2014 at 23:32
Hello dear, did you find any solution for this problem as I'm facing it myself?


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