Thank you for writing.
After downloading and double-clicking the executable it performs two steps in order to run the web installer:
- Extracts the application content in a randomly generated temp folder;
- Starts the real application from this folder;
It seems that it failed on the second step with an 'access denied' error, i.e. it wasn't able to start the extracted application.
I would advise you to check your execute permissions for the %temp% folder.
Another possible reason for the problem is not proper extraction of the content. After receiving the error you can open your %temp% directory and check the content of the most lately created folder (its name is random GUID). If it contains Telerik.CommonInstaller.UI.exe, you can try to start it manually.
I hope this information is helpful. Let me know if I can be of further assistance.
the Telerik team
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