Note: This guide focuses on Windows 10 apps that appear greyed out in the Start menu, taskbar, search results, or Microsoft Store library with an exclamation mark. In most cases, the problem is connected to Microsoft Store apps, damaged app registration, a stuck update, corrupted cache, account issues, or broken Windows system files.
Why Are Apps Greyed Out With Exclamation Marks on Windows 10?
You open the Start menu, ready to launch Mail, Photos, Calculator, Microsoft Store, Calendar, Xbox, or another app, and suddenly it looks like it has been sent to the digital naughty corner. The icon is greyed out. A tiny exclamation mark appears. Clicking it does nothing, or the app flashes briefly and closes. Very polite. Very useless.
Greyed out apps with exclamation marks on Windows 10 usually mean the app is installed but not properly available. Windows still knows the app exists, but something is wrong with its package, update status, permissions, cache, or user profile registration. This is especially common with Microsoft Store apps, also known as UWP apps or packaged apps.
The good news is that this issue is usually fixable without reinstalling Windows. The better news is that you do not need to be a wizard in a dark room muttering PowerShell spellsalthough, yes, we will use PowerShell later if the easy fixes do not work.
Common Causes of Greyed Out Apps on Windows 10
Before fixing the issue, it helps to understand what may have broken. The most common causes include:
- A Microsoft Store app update was interrupted.
- The Microsoft Store cache is corrupted.
- The app package registration is damaged.
- Windows Update did not complete properly.
- The Microsoft Store Install Service is disabled.
- Your Microsoft account or local user profile has a sync issue.
- App permissions or WindowsApps folder permissions were changed.
- System files are missing or corrupted.
- Third-party antivirus or cleanup tools interfered with Store apps.
In plain English: Windows misplaced the app’s paperwork. The icon is still there, but the app cannot check in at the front desk.
Start With the Simple Fixes First
Do not jump straight into advanced commands. That is like replacing your car engine because the gas cap was loose. Start with the clean, low-risk steps below.
1. Restart Your PC
Yes, it sounds basic. Yes, everyone says it. And yes, it often works. A greyed out app can be caused by a stuck installation or a pending app update. Restarting Windows allows background services to finish what they were doing.
Click Start > Power > Restart. Do not choose Shut down if Fast Startup is enabled, because that may not fully refresh the system session. A real restart is better.
2. Check Your Internet Connection
Microsoft Store apps may need to verify licenses, download missing files, or finish an update. If your internet connection dropped during installation, the app may sit there greyed out like a half-baked cookie.
Open a browser and visit a few websites. If your connection is unstable, reconnect Wi-Fi, restart the router, or switch to a wired connection temporarily.
3. Sign In to Your Microsoft Account
Some apps from the Microsoft Store depend on account licensing. If you are using a local Windows account, or if your Microsoft account needs attention, Store apps may fail to open correctly.
Go to Settings > Accounts > Your info. If Windows asks you to verify your account, do that first. Then open Microsoft Store and click your profile icon to confirm that you are signed in.
Update Windows 10 and Microsoft Store Apps
One of the most reliable fixes for greyed out apps with exclamation marks on Windows 10 is updating both Windows and your Store apps. Windows and Microsoft Store apps work together closely. If one is out of date, the other may throw a tiny tantrum.
Update Windows 10
- Press Windows + I to open Settings.
- Go to Update & Security.
- Click Windows Update.
- Select Check for updates.
- Install all available updates.
- Restart your PC.
If updates are pending, install them before doing anything more advanced. Many Store app issues are fixed after Windows completes its update cycle.
Update Microsoft Store Apps
- Open Microsoft Store.
- Click the three-dot menu or library icon, depending on your Store version.
- Choose Downloads and updates or Library.
- Click Get updates.
If the app that appears greyed out starts downloading, wait until the update finishes. Do not restart during the process unless Windows asks you to.
Run the Windows Store Apps Troubleshooter
Windows 10 includes a built-in troubleshooter for Microsoft Store apps. It is not magical, but it can detect basic problems with app configuration, cache, services, and account settings.
- Press Windows + I.
- Go to Update & Security.
- Select Troubleshoot.
- Click Additional troubleshooters.
- Choose Windows Store Apps.
- Click Run the troubleshooter.
Follow the recommended fixes, then restart your computer. After the restart, check whether the greyed out app works again.
Reset the Microsoft Store Cache With WSReset
The Microsoft Store cache stores temporary data that helps apps install, update, and launch. When that cache becomes corrupted, apps can get stuck, disappear, fail to open, or appear with exclamation marks.
To reset the Store cache:
- Press Windows + R.
- Type wsreset.exe.
- Press Enter.
A blank Command Prompt window may appear for a short time. Let it finish. Microsoft Store should open automatically afterward. Once it does, try launching the greyed out app again.
If nothing happens, run it as administrator:
- Click Start.
- Type wsreset.
- Right-click it and select Run as administrator.
Repair or Reset the Greyed Out App
Windows 10 lets you repair or reset many Microsoft Store apps from Settings. Repair tries to fix the app without deleting its data. Reset is stronger and may remove app data, preferences, and sign-in information.
How to Repair or Reset an App
- Open Settings.
- Go to Apps > Apps & features.
- Find the greyed out app.
- Click the app name.
- Select Advanced options.
- Click Repair if available.
- If Repair does not work, click Reset.
After resetting, restart your PC and test the app. For apps such as Mail, Calendar, Photos, Calculator, Xbox, or Microsoft Store, this step often solves the problem.
Uninstall and Reinstall the Problem App
If resetting does not fix the issue, uninstalling and reinstalling the app can rebuild its files from scratch.
Uninstall From Settings
- Go to Settings > Apps > Apps & features.
- Select the problematic app.
- Click Uninstall.
- Restart your PC.
- Open Microsoft Store.
- Search for the app and install it again.
If the Uninstall button is greyed out, the app may be a protected built-in Windows app. In that case, continue to the PowerShell section below.
Re-Register Microsoft Store Apps With PowerShell
If several Windows 10 apps are greyed out with exclamation marks, the issue may not be one app. The app registration database may be broken. Re-registering Microsoft Store apps can restore the connection between Windows and installed app packages.
Use this method carefully. It is widely used for broken Store app registration, but you should close open apps and save your work first.
PowerShell Command to Re-Register Apps
- Right-click the Start button.
- Select Windows PowerShell (Admin).
- Copy and paste this command:
- Press Enter.
- Wait for the command to finish.
- Restart your PC.
You may see red text during the process. Do not panic immediately. Some warnings appear because certain apps are open, protected, already registered, or unavailable for the current user. Restart and test the apps before assuming the command failed.
Reinstall or Reset Microsoft Store
If Microsoft Store itself is greyed out with an exclamation mark, other app fixes may not work because the Store is the delivery truck, the warehouse, and the cashier all rolled into one.
Reset Microsoft Store From Settings
- Open Settings.
- Go to Apps > Apps & features.
- Find Microsoft Store.
- Click Advanced options.
- Click Reset.
- Restart the computer.
If Microsoft Store does not appear in Apps & features, use PowerShell to re-register it with the app package command above.
Check Microsoft Store Install Service
Microsoft Store apps rely on background services. If the Microsoft Store Install Service is disabled, app downloads and updates may fail, leaving apps greyed out.
- Press Windows + R.
- Type services.msc.
- Press Enter.
- Find Microsoft Store Install Service.
- Double-click it.
- Set Startup type to Manual or Automatic.
- Click Start if the service is stopped.
- Click Apply, then OK.
Restart your computer and check the apps again.
Clear the App’s Local Cache
Some apps store local cache files that can become damaged. Clearing the cache may help when a specific app is greyed out or opens and closes instantly.
For many Store apps, cache data is stored under:
Inside that folder, each app has a package folder. For example, Microsoft Photos, Mail, and Calendar have long package names. You can open the app’s package folder and look for a folder named LocalCache.
Before deleting anything, create a backup of important data. Then rename LocalCache to something like LocalCache.old. Restart Windows and try the app again.
This method is best for experienced users because deleting the wrong app data may remove local settings.
Run DISM and System File Checker
If many built-in apps are greyed out, Windows system files may be corrupted. Microsoft recommends using DISM first, then System File Checker. DISM repairs the Windows component store, while SFC checks protected system files and replaces damaged files when possible.
Run DISM
- Click Start.
- Type cmd.
- Right-click Command Prompt.
- Select Run as administrator.
- Enter this command:
Wait until the process completes. It may take several minutes.
Run SFC
After DISM finishes, run:
Do not close the Command Prompt window until verification reaches 100%. When the scan finishes, restart your PC and test the greyed out apps again.
Create a New User Profile
If the apps work in one Windows account but not another, your user profile may be corrupted. A damaged profile can break Start menu entries, Microsoft Store app registration, and app permissions.
Create a New Local Administrator Account
- Open Settings.
- Go to Accounts > Family & other users.
- Click Add someone else to this PC.
- Create a new account.
- Set it as an administrator account.
- Sign out and sign in to the new account.
Open the Start menu and check whether the apps appear normally. If they do, your original profile may be damaged. You can move your personal files to the new account after confirming everything works.
Temporarily Disable Third-Party Antivirus or Cleanup Tools
Some antivirus suites, privacy tools, debloat scripts, and registry cleaners are a little too enthusiastic. They may block Store services, remove app components, or change permissions. The result: greyed out apps and one very annoyed user.
Temporarily disable third-party antivirus protection and test the apps. If you recently used a “Windows optimizer,” check whether it disabled Microsoft Store, background app services, Windows Update, or app licensing services.
Avoid random registry cleaning as a fix. Registry cleaners often promise a faster PC and deliver a mystery box of new problems.
Check App Compatibility and Windows 10 Support Status
Not every app will continue working forever on older Windows 10 builds. Some apps require newer Windows components, Store frameworks, WebView runtime, or updated security features.
Also remember that Windows 10 reached the end of standard support on October 14, 2025. Some devices may still receive updates through Extended Security Updates or special editions, but regular consumer support has changed. If your Windows 10 installation is very outdated, app problems may become more common over time.
If your PC supports Windows 11, upgrading may be worth considering. If you must stay on Windows 10, keep your system fully updated and avoid disabling Microsoft services that Store apps need.
Advanced Fix: In-Place Repair Upgrade
If nothing works and several Windows apps remain greyed out, an in-place repair upgrade may fix Windows while keeping your personal files and most apps. This process reinstalls Windows system components over your current installation.
Before doing this, back up your files. Then download the official Windows 10 installation media from Microsoft, run the setup file, and choose the option to keep personal files and apps.
This is a stronger repair step, but it is still less drastic than wiping the entire PC. Think of it as giving Windows a fresh uniform without making it move houses.
What Not to Do
When apps are greyed out with exclamation marks, avoid these risky shortcuts:
- Do not delete the WindowsApps folder.
- Do not change system folder permissions unless you know exactly why.
- Do not download unofficial Microsoft Store installers from random websites.
- Do not run unknown PowerShell scripts copied from forums.
- Do not use registry cleaners as your first repair method.
Windows app packages are sensitive. One wrong permission change can create more problems than the original grey icon.
Quick Fix Checklist
If you want the short version, follow this order:
- Restart your PC.
- Check internet connection and Microsoft account sign-in.
- Install Windows updates.
- Update apps in Microsoft Store.
- Run the Windows Store Apps troubleshooter.
- Run wsreset.exe.
- Repair or reset the app from Settings.
- Uninstall and reinstall the app.
- Re-register apps using PowerShell.
- Run DISM and SFC.
- Create a new user profile if the issue affects only one account.
- Use an in-place repair upgrade as a last resort.
Real-World Experience: What Usually Works Best
In real-world troubleshooting, greyed out apps with exclamation marks on Windows 10 usually fall into three groups: stuck updates, broken Store cache, and damaged app registration. The trick is not to attack the problem randomly. A calm order of operations saves time and prevents turning a small issue into a weekend project with snacks, regret, and twelve open forum tabs.
The first thing I usually check is whether Microsoft Store is working. If Store opens normally and can update apps, the problem is often limited to one app. In that case, repairing or resetting the app from Settings > Apps > Apps & features is often enough. Apps like Photos, Calculator, Mail, Calendar, and Sticky Notes frequently recover after a reset. It is not glamorous, but it works.
If Microsoft Store itself is greyed out, missing, or crashes instantly, I move to wsreset.exe. This command is quick and low-risk. It clears the Store cache without deleting personal documents. Many users expect a dramatic window with progress bars and heroic music. Instead, they get a blank Command Prompt window. That is normal. Let it finish. The lack of drama is part of the charm.
When several apps are greyed out at the same time, especially after a Windows update, interrupted installation, or system cleanup, PowerShell re-registration is often the turning point. The command that re-registers AppX packages can restore app links for all users. However, it should not be the very first step. Use it after updates, troubleshooting, Store cache reset, and app reset have failed.
Another pattern appears after aggressive “debloating.” Some users remove Xbox, Store, Edge components, background services, or built-in app frameworks because a script promised to make Windows “lighter.” Unfortunately, Windows 10 apps share plumbing behind the scenes. Remove the wrong pipe, and suddenly Calculator acts like it has joined a silent protest. If the issue started after running a cleanup script, reverse those changes if possible and re-enable Microsoft Store services.
User profile corruption is less common, but when it happens, it is sneaky. The same app may work perfectly in a new account while failing in the old one. That is a strong sign that Windows itself is not completely broken; the profile is. Creating a new administrator account is a useful test. If the apps work there, moving to a fresh profile may be faster than wrestling with the old one for hours.
For stubborn cases, DISM and SFC are worth running. They are not app-specific tools, but they repair the foundation beneath Windows. If system files or component store data are damaged, app repairs may fail until Windows itself is healthy again. Run DISM first, then SFC, then restart. Skipping the restart is a classic mistake. Windows loves a restart the way coffee loves Monday morning.
The most important experience-based advice is simple: do not panic-delete system folders. The WindowsApps folder is protected for a reason. Changing ownership or deleting app package folders may feel powerful for about six seconds, then Windows may respond by breaking more apps. Use official repair paths first: Settings, Store updates, troubleshooter, wsreset, PowerShell registration, DISM, and SFC.
Finally, keep expectations realistic. If your Windows 10 installation is old, heavily modified, or missing major updates, some apps may continue to misbehave. At that point, an in-place repair upgrade may be the cleanest fix. It keeps your files while rebuilding Windows components. It is not the first tool in the toolbox, but it is a good last resort before a full reinstall.
Conclusion
Greyed out apps with exclamation marks on Windows 10 look alarming, but they are usually repairable. Start with simple steps: restart, update Windows, update Microsoft Store apps, and run the Windows Store Apps troubleshooter. Then reset the Store cache with wsreset.exe, repair or reset the affected app, and reinstall it if needed.
If the problem affects multiple apps, re-register Microsoft Store apps with PowerShell and repair Windows system files using DISM and SFC. For account-specific problems, test with a new user profile. For deeply broken systems, use an in-place repair upgrade before considering a full reinstall.
The key is patience and order. Fix the easy things first, then move toward advanced repairs. Windows may be dramatic, but with the right steps, those grey icons can usually return to normal without turning your PC into a very expensive paperweight.
