To remove Lock option, you need to create a registry key.
Since modifying the registry improperly may cause damage to the system, please follow the steps below to back up the registry key:
1. Click Start, click Run, input "REGEDIT" (without quotation marks) and press Enter.
2. Navigate to the following registry key by expanding the "+" beside the registry tree in the left pane:
HKEY_LOCAL_MACHINE 3. Right click on
. Under HKEY_LOCAL_MACHINE", click "Export"; please name the file as "RegBackup" (without quotation marks) and then save it to the C:\ drive as a backup.
Note: In case we need to undo the modification, we can double click this RegBackup.reg file to restore the registry key.
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To remove Shutdown:
http://www.howtogeek.com/howto/7553/remove-shutdown-and-restart-buttons-in-windows-7/ After backuping the registry, try the following:
1. Navigate to the following key:
2. Under HKEY_LOCAL_MACHINE\SOFTWARE \Microsoft\Windows\CurrentVersion\Policies\System, create a new DWORD value named DisableLockWorkstation and set value to 1.
Save the settings, you will see the option turns gray.
To disable Sleep option:
Open gpedit.msc and go to Computer Configuration>Administrative Templates>System>Power Management>Sleep Settings Enable "Turn Off Hybrid Sleep"
Disable "Allow Standby States (S1-S3) when sleeping"