I installed Steady State last week just to check it out and wanted to uninstall it but it wouldn't uninstall. I ended up deleting all instances of "steadystate" in the registry, deleting the Cache.wdp file, and Steady State in Program Files.
Now, upon a new install of the msi I get "The configuration data
for this product is corrupt. Contact your support personnel"
I installed Windows install cleanup to try and clear out any leftover config files but the program wasn't listed.
I researched the registry and found these values related to Steady State that were undeletable: