I've run into a very strange problem: on any Windows Server 2012 R2 VM that I deploy in my ESXi 5.5 environment, if I copy a file to it from my laptop and then log on to the VM, I cannot then edit that file - I get "Access is denied" whenever I try to save it. The account I'm using to do this is in the local "Administrators" group in Windows, so this should not be happening (and doesn't happen with Server 2008 VMs).
From my testing, it's clear that this is a problem to do with the interaction between the OS and the hypervisor rather than just an issue with Windows. I think it may be something related to the way in which ESXi creates virtual SCSI disks as removable objects, but I'm not sure. What I have discovered, though, is that if I completely disable UAC via the registry* the problem goes away. That's not a viable solution, though, for obvious reasons!
Has anyone run into this? Any idea how to fix it?
* "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system" -> change "EnableLUA" from 1 to 0 -> reboot.