How to Restart a Computer — Windows, Mac, Linux & Frozen PC (2026)
Windows: click Start › Power icon › Restart. Mac: click the Apple menu () › Restart. If your computer is frozen: hold the power button for 10 seconds until it shuts off completely, wait 5 seconds, then press the power button once to turn it back on. All methods for every operating system are covered below.
Restarting a computer is the single most effective first step for fixing slow performance, internet problems, software errors, and pending system updates. Yet the exact steps differ across Windows 10, Windows 11, macOS, and Linux — and a frozen PC requires a different approach entirely.
This guide covers every reliable method to restart your computer in 2026: normal restarts, keyboard shortcuts, command-line options, force restarts for unresponsive machines, remote reboots, and scheduled restarts. Whether you are troubleshooting a problem or just performing routine maintenance, you will find the right method here.
All Restart Methods at a Glance
| Method | OS | When to Use |
|---|---|---|
| Start › Power › Restart | Windows | Standard everyday restart |
| Alt+F4 on Desktop › Restart | Windows | Quick keyboard-only restart |
| Ctrl+Alt+Del › Power icon | Windows | When Start menu is unresponsive |
| Win+X › Shut down or sign out › Restart | Windows | Power user shortcut |
shutdown /r /t 0 in Command Prompt |
Windows | Scripted or remote-triggered restart |
| Apple menu › Restart | Mac | Standard everyday restart |
| Ctrl+Cmd+Eject or Ctrl+Cmd+Power | Mac | Keyboard-only restart on Mac |
sudo reboot / systemctl reboot |
Linux | Terminal restart on any Linux distro |
| Hold power button 10 seconds | All OS | Completely frozen / unresponsive computer |
PowerShell Restart-Computer |
Windows | Remote restart over network |
ssh user@host "sudo reboot" |
Linux | Remote restart via SSH |
| Task Scheduler / crontab | Win / Linux | Scheduled automatic restart |
How to Restart a Windows Computer
Windows 10 and Windows 11 offer several ways to restart, from the familiar Start menu to keyboard shortcuts that work even when the interface is sluggish. Here are all the reliable options.
Windows Normal Restart — Start Menu
Windows 10 & 11The most straightforward method. Works on both Windows 10 and Windows 11 without exception.
- Click the Start button (Windows logo, bottom-left)
- Click the Power icon
- Select Restart
- Windows will prompt you to save open files, then restart automatically
Windows Keyboard Shortcut — Alt+F4 on Desktop
Windows 10 & 11A fast keyboard method that opens the classic Shut Down Windows dialog directly, without needing to touch the Start menu.
- Click on a blank area of the desktop (not on any open window)
- Press
Alt + F4 - A dialog box appears — use the dropdown to select Restart
- Click OK
Ctrl+Alt+Del › Power Icon
Windows 10 & 11Useful when Windows is slow or the Start menu is unresponsive. This key combination always works, even when the taskbar freezes.
- Press
Ctrl + Alt + Delsimultaneously - The security screen appears — look for the power icon in the bottom-right corner
- Click it and select Restart
Win+X Menu › Shut Down or Sign Out › Restart
Windows 10 & 11A power user shortcut that opens the advanced context menu. Faster than navigating the Start menu when you know the keyboard combination.
- Press
Win + X(or right-click the Start button) - In the menu that appears, hover over Shut down or sign out
- Click Restart
Command Prompt or PowerShell — shutdown /r /t 0
Windows 10 & 11
The command-line method restarts immediately without prompting. Useful for scripts, remote administration, and situations where the graphical interface is not responding.
- Press
Win + R, typecmd, press Enter - In the Command Prompt window, type the command below and press Enter
- The computer restarts immediately with no delay
The /r flag means restart (versus /s for shutdown). The /t 0 sets the delay to zero seconds. To add a 60-second countdown instead, use shutdown /r /t 60. To cancel a pending restart before it executes, run shutdown /a.
How to Restart a Mac
macOS offers a simple menu-based restart and two keyboard shortcuts. The approach is consistent across MacBook, iMac, Mac mini, and Mac Pro.
Apple Menu › Restart
macOS (All versions)The standard and recommended way to restart a Mac. macOS will ask whether you want to reopen windows after the restart.
- Click the Apple logo () in the top-left corner of the menu bar
- Click Restart… from the dropdown menu
- A confirmation dialog appears — click Restart again to confirm
- Optional: uncheck "Reopen windows when logging back in" if you want a clean start
Mac Keyboard Shortcut — Ctrl+Cmd+Power / Ctrl+Cmd+Eject
macOS (All versions)Restarts the Mac immediately without going through the Apple menu. The exact keys depend on your Mac model.
- MacBook with Touch ID power button:
Control + Command + Power - Older Mac with Eject key:
Control + Command + Eject - macOS will ask you to confirm, then restart
- If macOS is frozen, this shortcut may not respond — use force restart instead (see below)
How to Restart a Linux Computer
Linux systems are nearly always restarted from the terminal. The two most reliable commands work on Ubuntu, Debian, Fedora, CentOS, Arch, and most other major distributions.
Terminal Commands — sudo reboot and systemctl reboot
Linux (All distros)
Both commands do the same thing: signal the kernel to reboot cleanly. Use whichever you prefer.
- Open a terminal window (
Ctrl+Alt+Ton most desktop distros) - Type one of the following commands and press Enter
- Enter your password if prompted (sudo password, not root)
- The system shuts down all services gracefully, then reboots
Both commands are equivalent on modern systemd-based Linux distributions. If you have root access, you can also run reboot without sudo. The systemctl reboot form is preferred on servers running systemd because it gives running services a chance to shut down cleanly before the kernel restarts.
How to Force Restart a Frozen Computer
When the screen is completely unresponsive — the cursor does not move, keyboard shortcuts do nothing, and the computer is otherwise locked up — a force restart is the only option. This applies to both Windows and Mac.
Force Restart — Windows (Frozen PC)
Works When Completely FrozenUse this only when Windows is completely unresponsive and no keyboard shortcut or Start menu option is working.
- Step 1: Press and hold the physical power button on your PC or laptop for 10 full seconds
- Step 2: Wait for the screen to go completely dark and all fans to stop — confirm the machine is fully off
- Step 3: Wait 5 seconds
- Step 4: Press the power button once normally to turn the computer back on
- Windows may run a disk check (CHKDSK) on startup after an improper shutdown — let it complete
Force Restart — Mac (Frozen)
Works When macOS is UnresponsiveWhen the Apple menu and keyboard shortcuts are not responding on a Mac, force restart using the power button.
- Step 1: Hold the power button for 10 seconds until the Mac shuts off completely
- Step 2: Wait 5 seconds
- Step 3: Press the power button once to turn the Mac back on
- On Apple Silicon Macs (M1/M2/M3/M4), a brief hold of the power button also shows shutdown options — hold longer to force off
- macOS may offer to restore unsaved documents from auto-save after booting
Remote Restart — Reboot a Computer Over a Network
IT administrators and remote workers frequently need to restart a computer without physically being at the machine. Here are the three main approaches.
Windows: PowerShell Restart-Computer
Run from an elevated PowerShell session on the same network as the target machine:
Replace TARGETPCNAME with the actual computer name or IP address. The -Force flag closes applications without waiting for confirmation. You must have administrative rights on the remote machine and Windows Remote Management (WinRM) must be enabled on it.
Windows: RDP (Remote Desktop)
Connect to the remote PC via Remote Desktop (Start › Remote Desktop Connection), then restart through the Start menu as normal. This is the most user-friendly remote restart option for Windows.
Linux: SSH Remote Restart
Connect to the remote Linux machine via SSH and run the reboot command in one line:
Replace username with your remote username and 192.168.1.100 with the remote machine's IP address. The SSH session will disconnect immediately as the remote machine reboots — this is expected and normal behaviour.
Scheduled Restart — Automatic Reboot at a Set Time
Windows: Task Scheduler
Open Task Scheduler
Press Win + R, type taskschd.msc, and press Enter.
Create a New Basic Task
Click Create Basic Task in the right panel. Give it a name such as "Weekly Restart".
Set the Trigger
Choose Weekly, Daily, or a specific date and time. Select when the restart should occur — for example, every Sunday at 2:00 AM.
Set the Action
Choose Start a program. In the Program field, enter shutdown. In the Arguments field, enter /r /t 0. Click Finish.
Linux: crontab Scheduled Reboot
Open the root crontab with sudo crontab -e and add a line in the following format. This example restarts every Sunday at 3:00 AM:
The five fields are: minute, hour, day of month, month, day of week. A 0 in the day-of-week field means Sunday. Save and close the editor — the cron daemon picks up the change automatically.
Restart vs. Shutdown vs. Sleep — What Is the Difference?
| Option | What Happens | RAM Cleared? | Best For |
|---|---|---|---|
| Restart | Powers off and immediately turns back on, reloading the OS fresh | Yes | Fixing problems, applying updates, clearing RAM |
| Shutdown (Windows, Fast Startup on) | Saves kernel session to disk (hibernation file) — not a full power off | Partial | Turning off for the day when speed on next boot matters |
| Shutdown (Fast Startup off / Mac / Linux) | Full power off, everything cleared from RAM | Yes | Fully powering down before travel or long non-use |
| Sleep | Low-power state, RAM kept powered — resumes in seconds | No | Short breaks, stepping away for a few hours |
| Hibernate | Saves RAM to disk, powers fully off — resumes where you left off | No (saved to disk) | Laptops when you need to pack up but want to resume quickly |
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Frequently Asked Questions
Most experts recommend restarting your computer at least once a week if you use it daily. A restart clears RAM, applies pending system updates, and resets background processes that accumulate over time. If your PC feels slow or behaves oddly, a restart is always the first step before any other troubleshooting. Computers left running for weeks without a restart are more likely to experience memory leaks, degraded performance, and software glitches.
Restart powers the computer off and immediately turns it back on, clearing RAM and reloading the operating system completely fresh. Shutdown powers the computer off — but on Windows 10 and 11 with Fast Startup enabled (the default setting), Shutdown actually saves a partial system state to disk rather than clearing everything. This means Restart is more thorough and more effective for troubleshooting than Shutdown on modern Windows machines. On Mac and Linux, Shutdown is a full power-off and is equivalent to Restart in terms of memory clearing.
Hold the physical power button for 10 seconds until the screen goes completely black and the computer shuts off. Wait 5 seconds, then press the power button once to turn it back on. This is safe to do occasionally when the computer is fully unresponsive. Avoid doing it repeatedly in quick succession, as it can in rare cases interrupt a disk write operation. On SSDs (which are standard in computers made after 2018), the risk of data corruption from a force restart is extremely low.
Yes — any data that has not been saved to disk will be lost when you restart. Always save open documents, spreadsheets, and browser forms before restarting. Most modern applications like Microsoft Word and Google Chrome offer auto-recovery features, but these are not guaranteed. Save manually before any planned restart. If you use the Start menu restart option on Windows, the OS will prompt you to save before closing applications. The command-line method (shutdown /r /t 0) does not give you this prompt, so save manually first.
Yes, restarting resolves a surprisingly wide range of issues. It clears temporary files and RAM, resets network connections, applies pending software and driver updates, and stops frozen background processes. Common problems fixed by a restart include slow performance, unresponsive programs, internet connectivity problems, Bluetooth and peripheral issues, and Windows Update errors. IT technicians always recommend trying a restart as the first troubleshooting step before any other diagnosis, because it resolves roughly 80% of common complaints instantly.
Configure your browser to restore tabs after a restart before you reboot. In Google Chrome, go to Settings › On startup › select "Continue where you left off". In Microsoft Edge, go to Settings › Start, home, and new tabs › select "Open tabs from the previous session". In Firefox, it offers to restore your previous session by default when it detects it was not closed normally — you can also set this in Settings › General › Startup. With these settings active, all your open tabs will be restored automatically after your computer restarts.
Comments
The force restart tip worked perfectly on my old HP desktop that completely locked up. Held the button for 10 seconds like the article said, waited a bit, and it came back on without issues. Saved me a lot of stress thinking I had broken something. Simple advice but hard to find clearly explained anywhere else.
I had no idea Windows Shutdown with Fast Startup doesn't actually clear the RAM properly. That explains why restarting always felt more effective than shutting down and turning back on. Switching to Restart for troubleshooting from now on. Great breakdown of the differences between restart, shutdown, and sleep.
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