https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7336013#M42770 <P>Have been using AutoCAD LT 2012 for a number of years with no problem running under a Windows 8.1 operating system (have not upgraded to 10 because it caused too many problems on&nbsp;my HP Envy&nbsp;....tried it and then reverted back to 8.1).&nbsp; I only use&nbsp;AutoCAD LT&nbsp;for around 6-10 small projects/year.&nbsp; This summer I had to download the 2017/18 AutoCAD DWG viewer/file converter and have had problems with the ribbon ever since.&nbsp;</P><P>&nbsp;</P><P>Basic gist of the problem is that program completely crashes and closes as soon as I left or right click on any menu or ribbon commands.&nbsp; The program will load an existing file or a new file with no problem and pan/zoom interface as well as&nbsp;shorthand commands from command line work with no problem.&nbsp; I can also run the program in CLASSIC Workspace with no problem but whenever I shift back to the normal drafting workspace with the Ribbon it will then again completely crash and exit the program as soon as&nbsp;I click on the ribbon.</P><P>&nbsp;</P><P>I have tried repairing the program with the original disk, removing the DWG file converter program, and a complete uninstall and reinstall of AutoCAD LT both from the disk and from Windows program uninstall option from the control panel.&nbsp; I have also reinstalled both service packs 1 and 2 with the reinstalls.&nbsp; No matter what, it seems that the ribbon crashes still occur.&nbsp; I suspect that something has changed in the initial program loading/setup instructions or registry settings.</P><P>&nbsp;</P><P>Any help would be greatly appreciated.&nbsp; Thanks.</P><P>&nbsp;</P><P>RD</P> Tue, 29 Aug 2017 14:01:58 GMT Anonymous 2017-08-29T14:01:58Z https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7336013#M42770 <P>Have been using AutoCAD LT 2012 for a number of years with no problem running under a Windows 8.1 operating system (have not upgraded to 10 because it caused too many problems on&nbsp;my HP Envy&nbsp;....tried it and then reverted back to 8.1).&nbsp; I only use&nbsp;AutoCAD LT&nbsp;for around 6-10 small projects/year.&nbsp; This summer I had to download the 2017/18 AutoCAD DWG viewer/file converter and have had problems with the ribbon ever since.&nbsp;</P><P>&nbsp;</P><P>Basic gist of the problem is that program completely crashes and closes as soon as I left or right click on any menu or ribbon commands.&nbsp; The program will load an existing file or a new file with no problem and pan/zoom interface as well as&nbsp;shorthand commands from command line work with no problem.&nbsp; I can also run the program in CLASSIC Workspace with no problem but whenever I shift back to the normal drafting workspace with the Ribbon it will then again completely crash and exit the program as soon as&nbsp;I click on the ribbon.</P><P>&nbsp;</P><P>I have tried repairing the program with the original disk, removing the DWG file converter program, and a complete uninstall and reinstall of AutoCAD LT both from the disk and from Windows program uninstall option from the control panel.&nbsp; I have also reinstalled both service packs 1 and 2 with the reinstalls.&nbsp; No matter what, it seems that the ribbon crashes still occur.&nbsp; I suspect that something has changed in the initial program loading/setup instructions or registry settings.</P><P>&nbsp;</P><P>Any help would be greatly appreciated.&nbsp; Thanks.</P><P>&nbsp;</P><P>RD</P> Tue, 29 Aug 2017 14:01:58 GMT https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7336013#M42770 Anonymous 2017-08-29T14:01:58Z https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7336850#M42771 What are all the .NET versions installed in Win8 on your PC? Tue, 29 Aug 2017 18:21:09 GMT https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7336850#M42771 pendean 2017-08-29T18:21:09Z https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7337324#M42772 Not quite sure if this is what you are looking for….but are you looking for .net files that appear to have recent date stamps that a search of the computer reveals?<BR /><BR /><BR /><BR /> Tue, 29 Aug 2017 21:29:37 GMT https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7337324#M42772 Anonymous 2017-08-29T21:29:37Z https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7337541#M42773 Read this, I think it might be the problem <A href="https://knowledge.autodesk.com/search-result/caas/sfdcarticles/sfdcarticles/Autodesk-products-not-working-after-installing-NET-Framework-4-7.html" target="_blank">https://knowledge.autodesk.com/search-result/caas/sfdcarticles/sfdcarticles/Autodesk-products-not-working-after-installing-NET-Framework-4-7.html</A> Tue, 29 Aug 2017 23:33:06 GMT https://forums.autodesk.com/t5/autocad-lt-forum/autocad-lt-2012-crashes-when-i-click-the-ribbon/m-p/7337541#M42773 pendean 2017-08-29T23:33:06Z