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ERROR - ANSYS Electronics Desktop Will Not Launch After Windows Update
Authored by Caleb Scharf
July 2nd, 2021
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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.
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
- Add the following environmental variable:
- 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.- Remove the update by running the following command in an elevated command prompt: "wusa /uninstall /KB:4571756 /quiet /promptrestart"
- Note - This update may get reinstalled during your next update cycle and the problem could reappear.
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