{"id":161944,"date":"2023-01-25T07:28:15","date_gmt":"2023-01-25T07:28:15","guid":{"rendered":"\/knowledge\/forums\/topic\/fluent-fails-to-open-the-gui-when-run-and-no-errors-are-produced-when-run-on-windows-10-version-1803-with-data-execution-prevention-dep-and-address-space-layout-randomization-aslr-active-in-wi\/"},"modified":"2023-07-31T12:36:10","modified_gmt":"2023-07-31T12:36:10","slug":"fluent-fails-to-open-the-gui-when-run-and-no-errors-are-produced-when-run-on-windows-10-version-1803-with-data-execution-prevention-dep-and-address-space-layout-randomization-aslr-active-in-wi","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/fluent-fails-to-open-the-gui-when-run-and-no-errors-are-produced-when-run-on-windows-10-version-1803-with-data-execution-prevention-dep-and-address-space-layout-randomization-aslr-active-in-wi\/","title":{"rendered":"Fluent fails to open the GUI when run and no errors are produced.  When run on  Windows 10 version 1803, with Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR) active in Windows Defender Security center."},"content":{"rendered":"<p>If the the Windows event log shows an  error similar to,  ModLoad: 00000001`40000000 00000001`401a5000   fluent.exe ModLoad: 00007ffd`557a0000 00007ffd`55981000   ntdll.dll Access violation &#8211; code c0000005   This can indicate that the Windows Exploit protection settings on the machines are preventing Fluent from running.  If you use Microsoft Procmon to monitor  Fluent while it is running it  will  also show a QueryDirectory Event followed by a WerFault entry  Class File System Operation QueryDirectory Result Success Path C:Program FilesANSYS Incv192fluent*  Exit Status:-1073741819 WerFault  The Fluent development team are still investigating what changes need to be made to the Fluent code to prevent this. A possible workaround is set the below. You would need to check with your IT team if making this change would be compatible with the computer security policies for your company.  Go to windows search bar  Search for &#8220;exploit protection&#8221;  The link found should take you to the Windows Defender Security Center  Select Program settings   Choose the option, Add programs to customize  Select, Add by program name  Type in: fluent.exe  Click on the Add button   Locate the setting, Randomize Memory Allocations (Bottom-up-ALSR)  Tick\/Check  the option, Override system settings  Select the option, OFF.<\/p>\n","protected":false},"template":"","class_list":["post-161944","topic","type-topic","status-publish","hentry","topic-tag-2019-r1","topic-tag-fluent-sys","topic-tag-installation-licensing-systems","topic-tag-n-a","topic-tag-product-specific-issue"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_forum_id":["153867"],"_bbp_last_active_time":["1-24-2023  20:20:07"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["1059"],"siebel_km_number":["2058219"],"product_version":["2019 R1"],"km_published_date":["2019-02-14T16:05:34.000Z"],"family":["Installation\/Licensing\/Systems"],"application_name":["FLUENT - SYS"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/161944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/161944\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=161944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}