@marwa elrayes Thanks for posting in our Q&A.
To clarify this issue, we appreciate your help to collect some information:
- What type of the app? win32 app?
- How big is this app size?
If it is win32 app, it is suggested to try to restart the device to trigger the application installation. And the installation time is related to app size. If the app size is large, it needs more time to install.
Thanks for understanding.
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