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ERROR - ANSYS Electronics Desktop Will Not Launch After Windows Update

Authored by Caleb Scharf July 2nd, 2021 4153 views 1 likes KB956404

Error

ANSYS AEDT will not launch and does not indicate any error messages.  After a reinstallation or product re-configuration, the following error can be seen.

Machine generated alternative text:
Machine configuration failed 
ConfigureThisMachine.exe failed with error code 2: 
Configure product settings on DarklordVR 
Installation directory: 
File 
Start Menu Shortcuts... 
. ANSE Electronics Desktop 2020 R2: Done 
• ANSYS Twin Builder 2020R2: Done 
. Slwave 2020 R2: Done 
• ANSE EMIT 2020 R2: Done 
• ANSYS savant 2020R2: Done 
. PExprt 2020 R2: Done 
• ANSE PEmag 2020 R2: Done 
ANSYS Corporate Website: Done 
. Registerwith RSM: Done 
- Unregisterwith RSM: Done 
Modify Integration with ANSYS 2020 R2: Done 
Desktop shortcuts... 
- ANSYS Electronics Desktop: Done 
. ANSYS Twin Builder: Done 
- ANSE Slw&ve: Done 
ANSYS EMIT: Done 
. ANSYS Savant: Done 
Binary registration... 
• AnsoftShellExt.dll: Done 
- MathM0d.dll; Done 
- reg_ansysedtexe ERROR: Error 3221227010 
. reg_siwave.exe: ERROR: Error 3221227010 
- SD3Ctr1.dll: Done 
- Done 
• SimplorerCompEngine.dll: Done 
- Delcrossfiemit.exe: Done 
- Delcross/isavant.exe: Done 
. UPWPToolLauncher.exe: Done 
UPMfPEmag.exe: Done 
- IJPM/PExprt.exe: Done 
GRI display settings... 
- ANSE Electronics Desktop: Done 
. ANSYS swage: Done 
Return code: 2

 Error Text:

Machine configuration failed
ConfigureThisMachines.exe failed with error code 2:
reg_ansysedt.exe: ERROR: Error 3221227010
reg_siwave.exe: ERROR: Error 3221227010

Description/Cause

This error can occur after installing Windows 10 update KB4571756.   This associated windows update was first released on September 8, 2020.  Ansys is aware of the issue, and will likely resolve this problem in a release after 2020 R2, but that is unconfirmed at the time this article was written.  To determine if this update was installed on your computer you search the start menu for and open "View your update history".  

Solution

There are two possible workarounds.  The first is preferred and easily to implement.  Close ANSYS AEDT before performing either option.

Solution #1 - Environmental Variable

  1. Add the following environmental variable:
    1. ANSYS_EM_DONOT_PRELOAD_3DDRIVER_DLL=1

Solution #2 - Remove Windows Update

You can temporarily remove the offending windows update by running the below command.  
  1. Remove the update by running the following command in an elevated command prompt:  "wusa /uninstall /KB:4571756 /quiet /promptrestart"
  2. Note - This update may get reinstalled during your next update cycle and the problem could reappear. 

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