Hi Tien,
Thanks for sharing the log files.
After analyzing your log files, we came to know that v15.2.0.40 Essential Studio was not installed in your machine as another installation was running in background while installing v15.2.0.40 Essential Studio setup. Microsoft Windows does not allow more than one installation at a time.
Please try the below steps to resolve the reported issue.
1. Clear the
Temp location (Open the Run command (Windows Logo + R), type %temp% in the Search box, and then press Enter)
2. Restart your machine and reinstall the Syncfusion Essential Studio setup.
If you still face any issues even after following the above steps, please share us the following details. It would be much helpful for us to analyze the reported issue.
1. Follow the steps suggested in the below same KB article link and send us the zip file which consists of latest Syncfusion Installer logs generated by our tool
http://www.syncfusion.com/kb/2331 2. Let us know your convenient time to setup a brief web meeting to check the reported issue in your machine
Regards,
Manivannan S.