^ I did a deep clean including using CleanSweep which got a whole bunch more stuff left behind after using Windows Add/Remove.
The dilemma here is that if the "hidden" folder that SB keeps for all backup (quarantined files) is deleted then in each case of upgrading SB this would preclude the the ability to "undo" any changes done prior to installing the upgraded version of SB.
I'm not sure if this is advised by SpyBot support really? So then you deleted these "hidden" files yourself? This would to have had to have been done manually by you, btw.
The ONLY instructions (see link in prior post) I can find regarding installing has the instruction to install upgrades following standard uninstall and the referernce to the "hidden" back-up files (to recover from changes, "undo" changes) is referenced in a way that appears to be an after thought and mentioned later on after refering to "upgrading" and since it is a part of the "uninstall link" I interpret this to mean that this should be done only if the user intends to un-install SB and not for upgrades. At least that is the way it appears in the instructions (admittedly not clear however).
By doing what you suggest and deleting files and folders that SB has there for "undoing" or recovering from changes then as I said the user loses the ability to "recover" from changes they have done once the user upgrades SB. This would be a problem for some users if a change they had done caused problems later.
I would agree that a doing what you suggest will be better at avoiding problems with conflicts on upgrades however.
One answer I suppose is to do an "undo" for any changes done and then install the upgrade and then make all the changes again.
In any case
SB really needs to clarify whether these "hidden" backup files for older versions are compatible and/or used by upgraded versions. ---- By deleting the "hidden" backup files the user looses all history of changes made by SB.