The App Store reinstalls itself when you repair your operating system

You cannot permanently delete the App Store on a Mac or Windows PC — it is part of the operating system itself. If it has stopped working or disappeared from your screen, the fastest fix is to restart your computer. If that does not bring it back, you can reinstall it through your system settings without downloading anything separately.

On a Mac, the App Store lives in your Applications folder and is called "App Store". On Windows 11, it is called "Microsoft Store" and lives in your Start menu. Both are built into the operating system, so reinstalling means repairing the system files that run them, not downloading a new copy from the internet.

Key Takeaways

  • Restarting your computer fixes the App Store or Microsoft Store in most cases, since the app is part of your operating system and restarts repair it automatically.
  • On a Mac, you can reinstall the App Store by running Disk Utility to repair your system drive, which takes 10 to 20 minutes.
  • On Windows 11, you can reinstall Microsoft Store through Settings > Apps > Installed Apps, then search for "Microsoft Store" and select "Repair".
  • If the App Store still will not open after repair, signing out and back into your Apple ID or Microsoft account often fixes permission problems that block the app from running.
  • A full operating system reinstall is the last step and should only be done if repair fails — back up your files first.

Restart your computer first

Before you do anything else, shut down your computer completely and turn it back on. This closes all running programs and lets your operating system reload its core files, including the App Store or Microsoft Store. Many problems that make the app seem broken — like it will not open, or it shows an error message — go away after a restart.

Wait for your computer to fully load before opening the App Store again. On a Mac, this usually takes 30 seconds to a minute after you see the login screen. On Windows 11, wait until all your taskbar icons have loaded and you see your desktop clearly.

Repair the App Store on a Mac using Disk Utility

If restarting did not work, open Disk Utility to repair your system drive. Click the Apple menu in the top-left corner, select "System Settings", then click "General" in the left sidebar. Scroll down and click "About", then note the name of your disk — usually "Macintosh HD" or "Macintosh HD - Data".

Close System Settings. Open Finder, click "Applications" in the sidebar, then double-click "Utilities". Double-click "Disk Utility". In the left sidebar, click your main disk (the one you just noted). Click the "First Aid" button at the top, then click "Run". Disk Utility will check and repair your disk automatically — this takes 10 to 20 minutes. When it finishes, close Disk Utility and restart your computer.

After your Mac restarts, open Finder, click "Applications", and double-click "App Store". If it opens, the repair worked. If you still see an error, move to the next section.

Repair Microsoft Store on Windows 11

On Windows 11, right-click the Start button and select "Settings". Click "Apps" in the left sidebar, then click "Installed Apps". Scroll down until you see "Microsoft Store" in the list. Click the three dots next to it, then click "Repair".

Windows will spend a minute or two checking and repairing the app's files. When it finishes, click the Start button and search for "Microsoft Store". Click it to open. If the app opens without errors, the repair worked.

If you see a message that repair failed, click the three dots next to Microsoft Store again and select "Uninstall". Then click "Uninstall" again to confirm. After it removes, click the Start button, search for "Microsoft Store", and click "Get" to reinstall it from Windows. This downloads and installs a fresh copy in about two minutes.

Sign out and back in to your account

Sometimes the App Store or Microsoft Store will not open because your account permissions are broken. On a Mac, open App Store, click your account icon in the top-right corner, and select "Sign Out". Wait 10 seconds, then click the account icon again and select "Sign In". Enter your Apple ID and password.

On Windows 11, open Microsoft Store, click your account icon in the top-right corner, and select "Sign out". Wait 10 seconds, then click the account icon and select "Sign in". Enter your Microsoft account email and password. After you sign back in, try opening an app to see if the store works.

Reinstall your entire operating system as a last resort

If the App Store still will not work after repair and signing back in, your operating system files may be too damaged to fix with Disk Utility or the repair tool. A full reinstall replaces all system files with a fresh copy, which almost always solves the problem — but it takes an hour or more and you will lose any files you have not backed up.

On a Mac, plug in a power cable and connect to Wi-Fi. Click the Apple menu, select "System Settings", click "General", then click "Transfer or Reset". Click "Erase All Content and Settings" and follow the on-screen steps. Your Mac will restart and walk you through setting up as new. When you reach the App Store, it will work.

On Windows 11, click the Start button, search for "Reset this PC", and click it. Click "Reset PC", then choose "Keep my files" if you want to save your documents and photos, or "Remove everything" for a completely clean install. Windows will restart and reinstall itself — this takes 30 minutes to an hour. When it finishes, Microsoft Store will be ready to use.

Frequently Asked Questions

Why did the App Store disappear from my Mac?

The App Store app itself cannot be deleted, but it can be hidden if you accidentally moved it out of your Applications folder. Open Finder, click "Applications" in the sidebar, and look for "App Store". If you find it, drag it back to the Applications folder. If you do not see it, a restart or Disk Utility repair will restore it.

Can I read the App Store from the internet instead of repairing it?

No — the App Store is part of your operating system and is not available as a separate read. You must repair it through Disk Utility on a Mac or through Settings on Windows 11. If repair fails, a full operating system reinstall is the only other option.

Will repairing the App Store delete my files or apps?

No. Disk Utility repair and Microsoft Store repair only fix system files — they do not touch your documents, photos, or installed apps. A full operating system reinstall will remove apps unless you choose "Keep my files" on Windows, but your documents and photos stay either way.

How long does it take to repair the App Store?

A restart takes one to two minutes. Disk Utility repair on a Mac takes 10 to 20 minutes. Microsoft Store repair on Windows takes one to two minutes. A full operating system reinstall takes 30 minutes to an hour depending on your internet speed and how much data you have.