Why apps launch on startup and how to stop them
When you turn on your computer, certain programs open automatically without you clicking anything. This happens because those apps are set to run at startup — a feature many programs enable by default to make themselves easier to reach. Disabling startup apps frees up memory, speeds up boot time, and stops programs you don't use regularly from running in the background.
The method to disable them depends on your operating system. Windows, Mac, and Linux each have different places where startup apps are configured, and the steps differ slightly. Most people can disable startup apps in under five minutes using built-in system tools — you don't need special software or technical knowledge.
Key Takeaways
- On Windows, open Task Manager, go to the Startup tab, right-click any app, and select Disable to stop it from launching when your computer starts.
- On Mac, go to System Settings, select General, then Login Items, and remove apps from the list by clicking the minus button.
- Disabling a startup app does not uninstall it — the program remains on your computer and you can still open it manually whenever you want.
- Some apps like antivirus software may need to stay enabled at startup for security, so check what each app does before disabling it.
Disable startup apps on Windows
Open Task Manager by pressing Ctrl + Shift + Esc, or right-click the taskbar and select Task Manager. Click the Startup tab at the top of the window. You will see a list of all programs set to run when Windows starts, along with their current status (Enabled or Disabled) and the impact each one has on startup speed.
Right-click any app you want to stop and select Disable. The status will change to Disabled immediately, and that app will no longer launch when you restart your computer. You can disable multiple apps at once by selecting several with Ctrl+Click, then right-clicking and choosing Disable.
If you are unsure whether an app is safe to disable, look at the Publisher column — apps from Microsoft or your computer manufacturer are usually safe to leave alone. Anything labeled Unknown Publisher or from a program you do not recognize can almost always be disabled without breaking anything. You can always re-enable an app later by following the same steps and selecting Enable.
Disable startup apps on Mac
Click the Apple menu in the top-left corner and select System Settings. In the sidebar, click General, then select Login Items. You will see two sections: Apps and Allowed Behind Login.
In the Apps section, click any program you want to remove from startup, then click the minus button below the list. The app will disappear from the startup list. If an app appears in the Allowed Behind Login section instead, click it and select the minus button there. Both sections control what runs at startup — the difference is technical and does not affect how you disable them.
Unlike Windows, Mac does not show you how much impact each app has on startup speed, but removing apps from this list will still speed up your boot time. You can add an app back to startup later by clicking the plus button and selecting it from your Applications folder.
Disable startup apps on Linux
The method varies depending on which desktop environment your Linux system uses. On Ubuntu with GNOME, click the Activities button in the top-left, search for Startup Applications, and open it. You will see a list of programs set to run at startup. Select any app and click Remove to disable it.
On other Linux distributions, look for an application called Startup Applications, Session Settings, or Autostart Manager — the exact name depends on your desktop environment. If you cannot find a graphical tool, you can also disable startup apps by editing configuration files in your home directory, but the graphical method is simpler for most users.
Some Linux systems do not have a built-in startup manager. If you cannot find one, you may need to use your terminal to disable apps, which requires knowing the names of the configuration files involved. Searching your distribution's documentation for "disable startup applications" will point you to the right method for your specific version.
What happens when you disable a startup app
Disabling a startup app stops it from launching automatically, but does not remove it from your computer. The program remains installed and you can still open it manually by clicking its icon or searching for it by name. You can also re-enable it at startup anytime by reversing the steps above.
Your computer will boot faster because it no longer has to load that app into memory. If you disabled multiple apps, the speed improvement will be more noticeable. Some apps may run background tasks even when disabled from startup — for example, cloud storage services may still sync files if you open them manually — but they will not consume resources until you actually use them.
Which startup apps are safe to disable
Most apps you installed yourself are safe to disable. This includes web browsers, messaging apps, media players, and productivity software. Disabling them will not break anything — they will simply not open when you start your computer.
Be cautious with antivirus software, security tools, and system utilities from your computer manufacturer. These often need to run at startup to protect your system. If you are unsure about an app, search its name online or check the publisher — if it is from Microsoft, Apple, or your computer's maker, it is usually meant to stay enabled.
Cloud storage apps like OneDrive, Google Drive, or Dropbox can be safely disabled from startup if you do not need them syncing constantly. You can open them manually when you want to use them. Similarly, apps that show notifications or weather updates can be disabled without affecting the core program.
Re-enable a startup app if you change your mind
If you disabled an app and later decide you want it to launch at startup again, the process is simple. On Windows, open Task Manager, go to the Startup tab, right-click the app, and select Enable. On Mac, open System Settings, go to General and Login Items, click the plus button, and select the app from your Applications folder. On Linux, open Startup Applications and click Add, then enter the app's name.
There is no penalty for disabling and re-enabling apps — you can change your startup settings as often as you want. If an app is not working properly after you disabled it, re-enabling it at startup will not fix the problem, but it will restore the automatic launch behavior.
Frequently Asked Questions
Will disabling startup apps make my computer faster?
Yes, but the improvement depends on how many apps you disable and how resource-heavy they are. Disabling five lightweight apps might save a few seconds of boot time, while disabling a heavy program like Slack or Spotify could save 10 to 30 seconds. The main benefit is freeing up memory so other programs run more smoothly once your computer is fully started.
Can I break my computer by disabling the wrong startup app?
No. Disabling a startup app only stops it from launching automatically — it does not delete the program or damage your system. If you disable something important by mistake, you can simply re-enable it using the same steps. Your computer will continue to work normally.
What if I do not recognize an app in the startup list?
Search the app's name online along with the word "startup" to find out what it does. If it is from a program you installed, it is almost certainly safe to disable. If the publisher is Unknown or you cannot find any information about it, disabling it is still safe — you can always turn it back on if you need it.
Do I need to restart my computer after disabling a startup app?
Yes, the change takes effect the next time you restart. The app will continue to run if it is already open, but it will not launch automatically on the next startup. You do not need to do anything else — just restart normally.
Can I disable startup apps on a work or school computer?
It depends on your computer's settings. If your organization has locked down administrator access, you may not be able to change startup settings. Try opening Task Manager or System Settings and following the steps above — if you get a permission error, contact your IT department to ask whether you can disable startup apps.