@Saif Thanks for posting in our Q&A.
Downloaded MSI packages are stored in C:\Windows\System32\config\systemprofile\AppData\Local\mdm, so we can find the MSI there. Typically the size and date are good ways to determine which one is the package we're looking for.
After the MSI is installed on the device by the intune management extension, it would normally clean up this folder. It seems that old installation files that failed to be installed are still in this folder. Based on my understanding, it should be safe to delete them.
Hope it will help.
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