From the analysis of the various Q articles we can see that almost all the instances of this error occur when there is a permission problem or some corrupted files during the installation of various programs. The "object already exists" error comes probably from the fact that the application is trying to overwrite or reconfigure certain directories but those directories already exist. Because they exist but cannot be changed (coruption or lack of permissions) the application gets this error.
This error is sometimes encountered as 0x8009000f.
Symbolic name: ERROR_OBJECT_ALREADY_EXISTS
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