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Asked: 2026-05-10T22:35:56+00:00

It’s a WiX MSI installer and each time I uninstall and reinstall it in

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It’s a WiX MSI installer and each time I uninstall and reinstall it in my virtual machine environment the size reported in Add/Remove Programs gets bigger. It’s up to 200MB now when the installed files are only just over 30MB. Any idea how this could happen and what I might be doing wrong?

Edit: Not using any custom actions, and I don’t have anything for the uninstall, just assuming that WiX takes care of cleaning up after itself on uninstall, and it seems to. From what I can see, it’s the reported size that is incorrect, I can’t find any duplicated files or anything.

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  1. Can you put your ARP entries ? Also, how do you handle the RemoveOnuninstall attributs in the wix elements?

    Do you have CustomActions that write data? Do you erase that data, when uninstalling …

    Fill in the most details as possible.

    I found this post, then that will explain what’s your situation here, and the link to how the arp sized is calculated or almost 😉

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