Hello,
Do not know why this happened and never heard of such thing before. You can enable Audit (change permissions) on the root folder of roaming profiles. So if someone tries to change the permission on the root folder again, the operation will be recorded in Event
logs. By viewing the event logs, you will get to know when the permission was changed and who did it.
Fore your reference, heres an article which will help you recover the permissions of the roaming profiles if the same thing happens again.
Reconfigure roaming profile folder and home folder permission for all the users
http://www.windowstricks.in/2011/02/reconfigure-roaming-profile-folder-and.htmlThanks
Zhang
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