Roaming Profiles are compatible only between the following client and server operating system pairs. Windows 8. R2 don’t properly set the profile version.To fix this, ensure update rollup 2887595 is installed. After you apply this update, you must create a registry key before you restart the computer.
This issue affected both the home and business users; Webroot asked users not to delete the quarantined files -- especially if the user didn't have a backup of the data -- in order to have things restored.
This section is more important for shared VDAs like Windows 2008 R2 and Windows 2012 R2.
The default permissions allow users to store files on the C: drive in places other than their profile.
Then, Windows 8.1 creates a user profile and appends the suffix “.v4” to the profile folder name to differentiate it from version 2 of the profile in Windows 7 and version 3 of the profile in Windows 8.
From Citrix Knowledgebase article CTX139939 – Microsoft Internet Explorer 11 – Citrix Known Issues: The registry key value IEBrowser Maximum Major Version is queried by the HDX Flash service to check for maximum Internet Explorer version that HDX Flash supports.