GnuTux this is what has occurred:
With all user folders in place Gimp has started to crash on loading. I have a few captures at home of the crash point that shows three habitual points TAGS, SCRIPTS and PLUGINS.
Initially I suspected the TAGS cache had become corrupt and deleted it. This worked for a little while, however the crashes became more frequent.
Trial and error lead to Zipping the scripts and plugins folders (moving them to a different folder). This allowed me to load gimp and move the files back to the original folders.
Once this was established I retained essential plugins and removed as above, the scripts and plugins folder contents. This has been working (although nerve racking), however there are occasions where it crashes while performing tasks which a of frequent use for me, such as CanvasToLayerSize and Image crop.
My Suspicions were TOO MANY SCRIPTS-PLUGINS-RESOURCES, however removing all but the basics eliminated that possibility.
DirectShow also was a suspect as my sons has crashed on occasions (Command and conquer: Generals). It was updated resently and about the time of the worst crash history.
Gimp has been download from the repository, removed completely and reinstalled several times. The battery removed from laptop and all power drained, rebooted and reinstalled.
Windows was refreshed, reinstalled and also re-updated.
The kicker was when my sons school installed gimp 2.8.10 on microsoft 8.1 and began experiencing similar issues.
It's puzzling and annoying, also very hard to convey.
The laptop is new and mostly dedicated to GIMP. Inkscape runs fine as do Krita, my paint, ultrapaint, paintstar and GimpPainter. I found these failed when gimp misbehaved on XP.
I hope this is helpful GnuTux

Also maybe related - I have lost the use of the ALT key for KEYBOARD shortcuts along with thumbnail views.
I have not tried verbose mode, Graechan provided a helpful link earlier, but it will need to wait until i am home
