Hi @HOJudith,
sorry for your trouble. This seems to be a issue with your operating system install as it happens when the installer checks if certain windows updates are present. We haven’t seen this before and I was unable to find a solution online for your particular issue.
There is a workaround you can do. The Installer does not do much more than just copy files into the appropriate locations and setup some file associations. It does come with the ability to extract all files and let’s you run TouchDesigner from the folder the files were unpacked into.
To do so, run the installer from a Windows Command Prompt and utilize the /Extract command line switch. In combination with the /DIR switch you can also specify the folder into which the installer files will be copied:
TouchDesigner.2021.16270.exe /Extract /DIR=c:\Users\markus\Desktop\MyTouchDesignerFolder
Make sure to change the path to something that reflects your folder structure.
In the target folder, you can find the executable TouchDesigner.exe in the bin folder.
Hope this helps
Markus