Patchmy PC reported version 4.04 as outdated and I allowed it to update. It stated the update was installed with "code 1603" but it apparently uninstalled the software but did not install the update (the program had disappeared from my PC). I then checked the website for PDF SAM and found the version I had was indeed outdated. I downloaded and installed the update manually with no issues.
The current version for PDFSAM is 126.96.36.199 as of nov4 definition file. 1603 is a fatal error during your upgrade installation or uninstall/install have you been able to search your msi logs to see what may have caused the failure?