I hope there is an easy fix to this because otherwise I am stuck. I have been using FrameMaker v8 for years and it has survived several changes of PC and several Windows upgrades. I understand that FM8 is not officially supported on Windows 10, nevertheless after upgrading my laptop to Windows 10 in 2016 Framemaker 8 continued to run without issues.
This month I installed the evaluation copy of Framemaker 2017 and used it for 30 days. When the trial period finished and I uninstalled FM2017 my copy of FM8 would not run. I have tried a repair install, and an uninstall followed by full reinstall, and it still will not run. Task Manager shows a FrameMaker v8 process running but it is using no resources and doing absolutely nothing.
Has anyone any ideas where I could look to fix this? Adobe support haven't (yet) refused to help completely but they have said that FM 8 is not supported on Win 10 so I should expect problems. But it was running on Win 10 perfectly happily for over a year, so I'd rather not be fobbed off.
I'm sorry that you're a case study as to why you should never load trials or betas on your production environment (and always work with a copy of your actual docs). I suspect that you will have to employ a scrubber like revouninstaller to strip out all mention of Adobe off your machine and then reinstall it. Do you have a system restore point from before installing the trial? You may find that's easier to do.