The simplest way to stop startup apps

On Windows, open Settings, go to Apps, then Startup, and toggle off any program you don't want running when your computer boots. On Mac, go to System Settings, General, Login Items, select the app, and click the minus button. That's the standard method — it takes about 30 seconds and works for most everyday programs.

The reason this matters: every app that runs at startup uses memory and processor power before you even open your browser or email. If you have 10 programs launching automatically, your computer can take several minutes to become responsive. Disabling the ones you don't need speeds up boot time noticeably.

Not every program shows up in these built-in startup lists, though. Some hide themselves or run through system processes. The sections below cover where to look when the standard method doesn't find what you're after.

Key Takeaways

  • Windows Settings > Apps > Startup and Mac System Settings > General > Login Items are the first places to check and disable unwanted startup programs.
  • Some apps hide their startup behavior in their own settings rather than in your system startup list, so check the Preferences or Settings menu inside the program itself.
  • Windows Task Scheduler and Mac LaunchAgents can run programs at startup without showing them in the standard lists, but you should only disable items you recognize.
  • Antivirus software, cloud storage, and messaging apps often run at startup by design, so decide whether you actually want them running before you disable them.
  • Restarting your computer after making changes confirms that the app no longer launches automatically.

Check the app's own settings first

Before you dig into system settings, open the program itself and look for a Preferences, Settings, or Options menu. Many apps — Slack, Discord, Zoom, Dropbox, OneDrive — have a checkbox inside the program that says something like "Launch at startup" or "Start when I log in." Unchecking it there is often faster than hunting through system menus.

Look in the menu bar at the top of the window (on Mac) or in the hamburger menu or gear icon (on Windows and Mac). Some programs bury this setting under Advanced or General preferences. If you're not sure, search the app's settings for the word "startup" or "launch."

This method is also the safest: you're telling the app itself not to run at startup, rather than forcing it to stop at the system level. The app remembers your choice even if it updates later.

Windows: Task Scheduler and the Startup folder

If an app doesn't appear in Settings > Apps > Startup, it may be running through Windows Task Scheduler. Press Windows key + R, type taskschd.msc, and press Enter. In the left panel, click Task Scheduler Library, then look through the folders — particularly Microsoft > Windows and any folder with a company name you recognize.

Look for tasks with a Trigger column that says "At log on" or "At startup." Right-click the task and select Disable if you don't want it running. Be cautious here: disable only things you recognize. Windows system tasks keep your computer running smoothly, so don't disable anything you're unsure about.

You can also check the Startup folder directly. Press Windows key + R, type shell:startup, and press Enter. Any shortcut in this folder launches when you log in. You can delete shortcuts here, but deleting a shortcut doesn't uninstall the program — it just stops that particular launch method.

Mac: LaunchAgents and LaunchDaemons

Mac stores startup instructions in hidden folders called LaunchAgents and LaunchDaemons. You can see them by opening Finder, pressing Command + Shift + Period (which toggles hidden files on and off), then navigating to Library > LaunchAgents in your home folder.

Each file here is a small text document that tells Mac to run a program. You can move unwanted files to Trash, but only if you recognize the program name. File names often use reverse domain notation — for example, com.google.Chrome.plist for Google Chrome. If you're unsure what a file does, leave it alone.

A safer approach: use the free utility Lingon X or LaunchControl, which show you what each startup item does in plain language. These tools let you disable items without deleting files, so you can re-enable them later if you change your mind.

Programs that should usually stay enabled

Some apps run at startup for good reasons. Antivirus software (Windows Defender, Malwarebytes) needs to run continuously to protect your computer. Cloud storage (OneDrive, Google Drive, Dropbox) syncs files in the background. Security tools and password managers often need to start with your system to work properly.

Before you disable something, ask yourself: do I want this running all the time, or only when I open it? If the answer is "all the time," leave it enabled. If you're not sure what a program does, search its name online — a quick search usually tells you whether it's safe to disable.

What to do if you disable something by mistake

If you turned off a startup app and now something isn't working, you can turn it back on. Go back to the same place you disabled it — Settings > Apps > Startup on Windows, or System Settings > General > Login Items on Mac — and toggle it back on. Then restart your computer.

If you deleted a file from the Startup folder or LaunchAgents, you may need to reinstall the program to restore it. Most programs recreate their startup files when you reinstall them. Restart your computer after reinstalling to confirm the app launches again.

How to know if disabling apps actually helped

The best way to measure the difference is to restart your computer and time how long it takes to become usable — when you can open a browser or click on files without lag. Do this before you disable anything, then again after. You should notice a difference if you disabled several programs.

You can also open Task Manager on Windows (Ctrl + Shift + Esc) or Activity Monitor on Mac (Applications > Utilities > Activity Monitor) and look at CPU and memory use right after startup. Fewer startup apps means lower numbers, which means your computer responds faster when you're actually trying to use it.

Frequently Asked Questions

Will disabling startup apps break my computer?

No. Disabling a startup app just means it won't launch automatically — you can still open it manually whenever you want. The only risk is disabling something you actually need to run in the background, like antivirus software. If that happens, you can turn it back on in the same place you disabled it.

What's the difference between disabling an app and uninstalling it?

Disabling a startup app means it won't run when your computer starts, but the program is still installed and you can open it manually. Uninstalling removes the program entirely. Disabling is the safer choice if you might want to use the app later.

Why do some apps keep re-enabling themselves at startup?

Some programs reset their startup settings when they update. If an app keeps launching even after you disabled it, check its own settings menu — it may have re-enabled itself there. You can also disable it again in your system startup list.

Is it safe to delete files from the Startup folder?

Yes, deleting a shortcut from the Startup folder is safe — it just stops that launch method. The program itself stays installed. If you want to use the app later, you can open it manually from your Applications folder or Start menu.

How many startup apps is normal?

That depends on what you use your computer for. Most people can disable 5 to 10 apps without losing anything important. A good rule: if you don't use an app every day, it probably doesn't need to run at startup.