Not a Microsoft Verified App? What It Means & Fixes

When Windows shows “The app you’re trying to install isn’t a Microsoft-verified app,” it means the app lacks a Microsoft digital signature or comes from outside the Microsoft Store. You can still install it in most cases by adjusting SmartScreen or using the “Install anyway” option, but you should first understand why the warning appears and whether it’s safe to proceed.

Why Windows Shows This Warning

Windows 10 and 11 use a security feature called SmartScreen to protect your PC from untrusted software. When you run an installer, SmartScreen checks two things:

Reputation — how many people have downloaded and run the file without issues
Signature — whether the file has a valid digital certificate from a recognized authority

If the app is from the Microsoft Store, it’s automatically “verified” because Microsoft has reviewed it. If you downloaded an .exe or .msi from the web, it may not have a signature, or the signature may be from an unknown publisher. That triggers the warning. It doesn’t always mean the app is malicious — many legitimate open-source and indie programs are unsigned because code-signing certificates cost money. But it also doesn’t guarantee the app is safe, so you need to evaluate the source carefully.

What “Verified” Actually Means

A “Microsoft-verified” app is one that has passed Microsoft’s checks. There are two main paths to that status:

Microsoft Store apps — submitted to the Store and reviewed by Microsoft for policy compliance and malware.
Signed desktop apps — the developer has purchased a code-signing certificate from a trusted certificate authority (like DigiCert or Sectigo). Windows trusts the signature because it chains back to a root certificate Microsoft has in its store.

An app that is neither in the Store nor signed will trigger the warning. Some signed apps still trigger it if the certificate is new or the publisher has low reputation. The warning is a risk indicator, not a verdict.

How to Install the App Anyway (Safely)

If you trust the source — for example, you downloaded it directly from the developer’s official website — you can bypass the warning. Here’s how:

Right-click the installer file and select Properties.
Look for a Digital Signatures tab. If it exists, check that the signer is the developer you expected.
Close Properties, then right-click the file again and choose Run as administrator.
If the SmartScreen prompt appears, click More info, then Run anyway.

If you don’t see “Run anyway,” you may need to temporarily lower SmartScreen settings: go to Windows Security > App & browser control > Reputation-based protection and turn off “Check apps and files.” Turn it back on after installing. This is a last resort — it disables protection for all downloads, so only do it if you’re confident about the file.

Common Causes of the Warning

Besides unsigned files, these situations often trigger the message:

Downloaded from a mirror site — the file may be altered or repackaged.
Old installer — the certificate may have expired, or the file predates Windows 10’s stricter policies.
SmartScreen reputation is low — new apps with few downloads get flagged even if signed.
Group Policy restrictions — on managed (work or school) PCs, an administrator may have blocked non-Store apps entirely.
Antivirus interference — some security suites add their own warnings that look similar.

If you’re on a work computer, you may not be able to bypass the warning at all. Contact your IT department instead of trying to circumvent policy.

Is It Safe to Install? How to Decide

Before clicking “Run anyway,” ask these questions:

Where did you get the file? The official website or a trusted repository like GitHub (from the developer’s own page) is far safer than a random download site.
Is the publisher name visible? In the SmartScreen prompt, click “More info” to see the publisher. If it matches the developer, that’s a good sign.
Does the file have reviews or a known reputation? Search the app name plus “Safe?” or “Virus” to see if others have reported issues.
Do you have a backup? Create a restore point before installing anything suspicious.

If you’re unsure, upload the file to VirusTotal (a free service that scans with multiple antivirus engines) before running it. That’s a quick, reliable check.

Alternatives to Bypassing the Warning

If you’d rather not override the warning, consider these options:

Check the Microsoft Store — many popular apps have an official Store version that is verified and auto-updates.
Use a portable version — some apps offer a “portable” edition that doesn’t need installation; it may still trigger the warning but leaves no system changes.
Look for a signed alternative — a different app that does the same job but is signed or in the Store.
Use Windows Sandbox — run the installer in a temporary virtual environment to test it safely (available on Windows 10/11 Pro and Enterprise).

These options reduce risk while still letting you use the software you need.

Frequently Asked Questions

Can I turn off the “Microsoft-verified” warning permanently?

Yes, by disabling SmartScreen in Windows Security, but that’s not recommended because it removes a valuable layer of protection for all downloads. If you must, you can turn it back on after installing the app.

Why does a legitimate app like Zoom trigger this warning?

Zoom and other well-known apps usually don’t trigger it because they are signed and have high reputation. If you see the warning for a famous app, you may have downloaded a fake version from a lookalike site. Double-check the URL and file properties.

What’s the difference between “verified app” and “verified publisher”?

“Verified app” usually refers to the Microsoft Store review process. “Verified publisher” means the digital signature’s certificate is valid and traces to a known company. A publisher can be verified while the app itself is not in the Store.

Does the warning mean the app has a virus?

No. It only means the app hasn’t been verified by Microsoft. Many clean apps are unsigned. However, malware often hides in unsigned files, so treat the warning as a prompt to investigate, not a definitive diagnosis.

Can I install the app if I’m on Windows 11 S Mode?

No. In S Mode, Windows only allows apps from the Microsoft Store. You would need to switch out of S Mode (which is free but one-way) to install external apps.

Why does the warning appear even for apps I downloaded from the Microsoft Store?

That’s unusual. It can happen if the Store app is a desktop bridge that downloads an external installer, or if your system’s date/time is wrong, causing certificate validation to fail. Check your clock settings first.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

More in this bed

The whole Tech How-To bed →