This is a problem and a solution in one. Hopefully helpful to someone as this problem drove me nuts.
I had ongoing issues for years with fences crashing windows 7 and hoped an upgrade to windows 10 pro would solve things. No luck. The fences install failed to load automatically and often took 3-4 gos to manually load. It would then occasionally crash.
I followed all stardock software guidelines to sort this including the following...(none worked)
..Uninstall/reinstall
..scan all drives and repair any faults
..Purge software and reinstall
...set up new user and perform clean boot, purge and reinstall
I resolved the issue by completely deleting Fences and forcing the install to a secondary drive. The main drive is a Plextor PX-128 SSD. The secondary drive being a WD 1TB standard hard drive. The SSD drive passes every test I throw at it and appears faultless in every way. Fences will simply not run on it.
I have seen a lot of similar posts with very similar symptoms to mine and I suspect may have a similar cause.
Hope this has been helpful to someone and perhaps stardock could give an explanation.
Cheers wayne