Why you might want to disable startup apps

When you turn on your computer, dozens of programs may launch automatically in the background. Some are necessary — your antivirus software, for instance. Others are not. Streaming services, messaging apps, cloud storage programs, and browser extensions all commonly set themselves to start automatically, even if you rarely use them. Each one consumes memory and processing power while your computer boots, slowing down the time it takes to reach a usable desktop.

Disabling startup apps that you do not need running constantly can cut boot time in half. It also reduces the background load on your system throughout the day, freeing up resources for the programs you actually want to use. This is one of the most effective ways to improve performance without buying new hardware.

Key Takeaways

  • Windows and Mac both let you see which apps launch at startup and disable the ones you do not need.
  • Disabling a startup app does not uninstall it — you can still open it manually whenever you want.
  • Some apps, like antivirus software and Windows Update, should stay enabled for security.
  • The fastest way to check startup apps is through your system settings, not by hunting through folders.
  • If you disable something and your computer stops working correctly, you can turn it back on in the same place.

How to disable startup apps on Windows 10 and 11

Open the Task Manager by pressing Ctrl + Shift + Esc, or right-click the taskbar and select Task Manager. Click the Startup tab at the top. You will see a list of every program set to launch when Windows starts, along with its current status (Enabled or Disabled) and the impact it has on startup time (Low, Medium, or High).

Right-click any app you do not need at startup and select Disable. The status will change to Disabled when ready. The next time you restart your computer, that app will not launch. You can re-enable it the same way if you change your mind. Do not disable anything labeled Critical or anything you are unsure about — Windows needs some of these to function.

If you want more control, you can also go to Settings > Apps > Startup. This shows the same list in a different layout, with a toggle switch next to each app. Flip the switch off to disable it. This method is slower than Task Manager but shows the app icon, which can help you identify what each program does.

How to disable startup apps on Mac

Click the Apple menu and go to System Settings (or System Preferences on older Macs). Select General, then Login Items. You will see two lists: Apps and Allowed in the Login Window. The first list shows programs that launch when you log in. Select any app and click the minus button to remove it from startup.

Some apps also appear under Allow in the Login Window, which controls whether they can run in the background even when you have not opened them. You can remove these too if you do not want them running invisibly. As with Windows, disabling a startup app does not delete it — you can still open it manually from your Applications folder or Spotlight search.

Which apps are safe to disable

Most apps that appear in your startup list are safe to disable. Cloud storage services like OneDrive, Google Drive, and Dropbox, messaging apps like Discord and Slack, and streaming services like Spotify and Steam can all be disabled without affecting your system. You can open them manually whenever you need them, and they will work exactly the same way.

Do not disable antivirus software, Windows Defender, Windows Update, or any program labeled as a system service. These protect your computer from malware and security vulnerabilities. If you are unsure whether something is safe to disable, search for the program name online — most software companies document whether their app needs to run at startup.

If you disable something and your computer stops working correctly, or a program stops functioning, you can turn it back on when ready using the same method. There is no permanent consequence to disabling a startup app.

What happens after you disable a startup app

Your computer will boot faster the next time you restart it. The difference is most noticeable if you had many apps set to launch at startup — you might see a 30-second to 2-minute improvement depending on how many you disabled and how heavy they were.

The disabled app will no longer run in the background. If it is something you use regularly, like a messaging app or cloud storage, you will need to open it manually. If it is something you rarely use, you will probably not notice it is gone. Some apps will ask you to re-enable startup launching the next time you open them — you can say no.

Startup apps that slow down your system the most

Programs with High impact on startup time are the best candidates to disable first. These typically include video conferencing software like Zoom, creative applications like Adobe Creative Cloud, and some antivirus programs that run heavy scans at boot. Disabling even one High-impact app can cut several seconds off your startup time.

Medium-impact apps like Spotify, Discord, and OneDrive add up if you have many of them. Disabling five Medium-impact apps might save 10 to 15 seconds. Low-impact apps barely slow your boot, but disabling them still frees up a small amount of memory for the programs you actually use.

Frequently Asked Questions

Will disabling a startup app uninstall it?

No. Disabling a startup app only stops it from launching automatically when your computer starts. The program remains installed on your computer, and you can open it manually anytime. You can also re-enable it to run at startup again using the same method.

What if I disable something and my computer stops working?

Open Task Manager or System Settings again and re-enable the app. Your computer will work normally again after you restart. If you are not sure what caused the problem, enable the apps one at a time and restart between each one to identify which one was necessary.

Can I disable Windows Update or antivirus software from startup?

You can, but you should not. These programs protect your computer from malware and security vulnerabilities. Disabling them leaves your system exposed. If you want to improve startup time, disable other apps first — the performance gain from removing antivirus is not worth the security risk.

Why does an app keep re-enabling itself at startup?

Some programs automatically re-enable themselves when you update them or open them for the first time after an update. If this happens, disable it again. If it keeps happening, check the app's settings — many have an option to disable startup launching within the app itself, which is more permanent than disabling it in Task Manager.

How often should I check my startup apps?

Check your startup list whenever you install new software, since many programs add themselves to startup by default. You can also check it once or twice a year to see if anything new has been added. Most people do not need to manage startup apps more often than that.