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Wake-on-LAN is a protocol to wake remote computers from a low power mode. When a network adapter detects an Ethernet packet or WOL event, Wake-On-LAN (WOL) wakes a Windows computer from sleep mode. In Windows 10/8, Microsoft has changed the default behavior of how your computer reacts to WOL events.
Wake-on-LAN behavior under Windows 10/8
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Wake-on-LAN is not officially supported by the S5 power state in Windows 7. On Windows 7, when the PC turns off, the system is set to S5 and all devices to D3, the state with the lowest performance.
On Windows 10/8, when the computer turns off, the system can be set to S4 Hybrid Shutdown or Hibernate and the devices can be set to D3. Wake-On-LAN is supported by S3 (Sleep) or S4 (Hibernate) under Windows 10/8.
To learn more about the different sleep states of the system under Windows 10/8, click here.
Disable or enable Wake-on-LAN in Windows 10
By default, Wake-on-LAN is enabled in Windows 10. However, if you want to check or change the settings, you must open the Device Manager. Open the Win+X menu and select Device Manager.
Scroll down to the network adapters and locate the network device. Right-click and choose Properties. Under the Advanced tab in the Property field, you see Wake on magic Packet. You can make your choice from the drop-down menu.
Free computer wakeup software
1] WakeOnLAN is an open source tool that allows you to easily wake and turn off remote Windows computers. He can do the following tasks for you:
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- Reactivate a remote computer that is turned off
- Turn off a remote computer
- Turn off the selected remote computer to see its status
- Perform an emergency shutdown of ALL computers set simultaneously
- Connect to the remote server via Remote Desktop
- Monitor WOL packets.
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You can download it here.
2] Nirsoft WakeMeOnLan allows you to remotely power on one or more computers by sending Wake-on-LAN (WOL) packets to remote computers. When your computers are on, WakeMeOnLan allows you to scan your network, collect the MAC addresses of all your computers and save the list of computers in a file.
PS: Wake On LAN (WOL) support is now available for Windows 10 Surface devices.
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