As this appears to the initial thread about the problem, it would be nice if at least a reference to the solution could be posted here. Especially as following a thread as it is updated is much easier than trying to track the forum. Thanks in advance.
Just installed latest Win 10 update: Pro Insider Preview Buil 14915.rs_prerelease.160826-1902, and started getting "Fences has detected that Exporer was not closed properly. As a precaution, Fences has been temporarily disabled. To re-enabel Fences, right click your desktop and choose "Enable Fences". Doing that works for about 10 seconds. Did a restart. Same problem. Uninstalled and reinstalled. Upgraded to Version 3. No joy. HELP Please!!