Just tried in a different way and succeeded.
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Search for the original installer in C:\ProgramData\PDF Architect 5\Installation.
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Run the installer with Internet disconnected. If you do it with the Internet on, you may end up with the same issue I ran into earlier.
The name of the installer is PDF_Architect_5_Installer.exe. there would be a few MSI installer as well in the folder, just ignore them
- The installer should show a screen with an “uninstall” button at the bottom. Click that and you’re done.
I shouldn’t have bothered to install this shit in the first place. The Chrome “Save as PDF” option is quick and neat by far, but then you sometimes do need a print driver for various other file formats which Chrome cannot open. I will stick to Cute PDF.