Hi @Prakash mishra ,
Thank you for reporting it in Microsoft Q&A.
If you want to install the Visual Studio Build Tools 2019 without needing to launch the installer UI, please try the following command line to perform a silent installation of C++ build tools workload.
vs_buildtools.exe --quiet --add Microsoft.VisualStudio.Workload.VCTools
In addition, about the activity logs, you can find it under %temp% folder.
If it persists, could you share us more details about the error in order for us to investigate it further?
Please download and run this collect.exe tool, go to %temp% folder and find the vslogs.zip file, upload it to https://onedrive.live.com/ and share the link here.
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