Clean install of 12.8?

[dg27]

I'm running Win 7 Pro 64X and PT 12.4.

I've been seeing some very flaky behavior with PT 12.4 this week and think a reinstall might be advisable. But rather than reinstall 12.4, I think it's high time I install 12.8.3. I've been postponing that because I don't like doing it mid-project.

Need advice on the workflow for this.

I use Trasher 3: Should I back up Prefs, I/O settings, etc., uninstall 12.4, install 12.8, then restore what I backed up using Treasher?

I haven't done a reinstall in a while, and the last time I did was before I started using Trasher.

I seem to remember that there was at least one and possibly two folders related I believe to plug-ins that I dragged to another drive and then copied back over once I had reinstalled.

Any advice would be appreciated.

Thanks.