You're in bed, the PC is still on downstairs. Or the film finished and the HTPC is humming under the TV. Shutting a computer down from your phone is easy once something on the PC is listening — and the one thing a phone can't do without extra setup is turn a PC back on. Here are the options, from no-install to fully scheduled.
Option 1: a phone remote with a power button
Any PC remote app that runs on the computer can shut it down. With SofaDeck the phone needs no app: open the deck in the browser and say shut down
, restart
or sleep
, or tap a power button. Every power action shows a confirmation on the phone first, so a misheard command can't switch off a PC mid-download. Lock the PC
and screen off
work too, without confirmation.
- Install SofaDeck on the PC and pair your phone by scanning the QR code and typing the PIN.
- Open the deck on the phone and say 'shut down', 'restart' or 'sleep' (or tap a power button you added).
- Confirm on the phone. The PC runs the command.

Unified Remote's free version also has power controls, and Chrome Remote Desktop lets you reach the Start menu from anywhere. See PC remote apps compared.
Option 2: the built-in shutdown command
Windows' shutdown command is what most remotes run behind the scenes. Useful forms:
| Command | Does |
|---|---|
shutdown /s /t 0 | Shut down now |
shutdown /r /t 0 | Restart now |
shutdown /s /t 3600 | Shut down in one hour (sleep timer) |
shutdown /h | Hibernate |
shutdown /a | Cancel a pending shutdown |
A shortcut file (.lnk) or a .bat containing one of these can be launched from any deck button — a "Shut down in 1 hour" button is a nice sleep timer for films. On a Mac, use the Apple menu or sudo shutdown -h now in Terminal; SofaDeck's Mac app handles sleep and shut down itself.
You'll also find guides to shutdown /m \\computer for shutting down another PC over the network. That needs administrator rights on the target and the right firewall and remote-management settings, and it's built for office networks rather than homes. A phone remote is far simpler.
Option 3: turning the PC back on (Wake-on-LAN)
A switched-off PC isn't running any remote, so waking it needs Wake-on-LAN: the network adapter stays powered and listens for a "magic packet" from a Wake-on-LAN app on your phone. To use it:
- Enable Wake-on-LAN (sometimes "Power on by PCI-E") in the BIOS/UEFI.
- In Device Manager → your network adapter → Properties, enable "Wake on Magic Packet" and on the Power Management tab allow it to wake the computer.
- Use Ethernet: Wake-on-LAN over Wi-Fi is rarely supported.
- On Windows, Fast Startup can stop a fully shut-down PC from waking; if it doesn't work, try from sleep first, or turn Fast Startup off.
Simpler alternative: use sleep instead of shut down. A sleeping PC wakes with a key or mouse press and is ready in seconds — the HTPC remote guide recommends it for living-room PCs. SofaDeck 1.0.7 adds a sleep timer and a "screen off, stay ready" mode (free), and Wake-on-LAN setup plus wake buttons in Pro: see wake your PC from your phone and shutdown timers for Windows.
Sources
Frequently asked questions
How do I shut down my PC from my phone?
Use a remote that runs on the PC and has a power button: SofaDeck (say 'shut down' or tap a button, then confirm on the phone), Unified Remote's power remote, or Chrome Remote Desktop to reach the Start menu. All need the PC to be on and connected.
Can I turn my PC on from my phone?
Only with Wake-on-LAN, and only if the PC's BIOS/UEFI and network adapter support it and it's enabled. A wake-on-LAN app on the phone sends a 'magic packet' on the home network. Wake-on-LAN generally works over Ethernet; Wi-Fi wake support is rare. Remotes that run on the PC itself can't wake it, because they're off too.
What's the shutdown command for Windows?
shutdown /s /t 0 shuts down immediately; shutdown /r /t 0 restarts; shutdown /h hibernates; shutdown /a cancels a pending shutdown. Replace 0 with a number of seconds for a delay, e.g. shutdown /s /t 3600 for one hour.
Can SofaDeck shut down my PC by accident?
No. Shut down, restart, sleep and sign out always show a confirmation on the phone first, so a stray tap or misheard voice command does nothing until you confirm.