So for a while now I haven't been able to update Crew Chief as it said the resource was unavailable in the temp directory.

I deleted everything from everywhere in all folders as well as the registry but it still wouldn't let me install a fresh version.

Anyway.. what I did to fix was find out the version I had installed (in this case it was, you can find this from Apps & Features, then i went to and downloaded the correct MSI for my installation, which I think is what it requires to do the uninstall properly. Change the version to suite the installed version you have.

Once downloaded create a copy of this file, rename it to CrewChiefV4.msi and copy this to your temp directory, Win + R and type %temp% for that. Then unstall it from App's & Features and you should be good to install the new version again.