PROBLEMWhen trying to install the cumulative patch from General Settings\Product Updates, the the update fails.
- GFI MailEssentials 2015
- All supported environments
- Right click the \GFI\MailEssentials directory and select Properties.Click the Security tab
- Add the Network Service account with full control and allow the permissions to propagate
..."error ","PatchPlugin","Error: InstallPatch, System.InvalidOperationException: This access control list is not in canonical form and therefore cannot be modified.