http://support.microsoft.com/kb/976877
*** Very important ***
Check this to see what is preventing the computer from sleeping…
powercfg -requests
Tip: Prevent open files from disabling sleep (System)
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Control\ Power\ PowerSettings\ 238C9FA8-0AAD-41ED-83F4-97BE242C8F20\d4c1d4c8-d5cc-43d3-b83e-fc51215cb04d]
In there, set Attributes to 0 (the default value is 1, which means hide).”
Then… Power options -> Change Plan Settigns -> Change Advanced Power settings -> Sleep -> Allow sleep with remote opens (make sure show hidden if not shown)
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