> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# A "Windows protected your PC" message displays during install

## Issue:

Executing the nTop MSI may trigger the Microsoft SmartScreen warning "Windows protected your PC" and block the installation process.

![The Windows protected your pc message.](https://files.learn.ntop.com/help-articles/setup-and-install-troubleshooting/1500002844202.png)

## Applies to:

* nTop Installation

## Cause:

This message occurs if an application is unrecognized by Microsoft. New software versions are sometimes unrecognized at release until enough users install the software to build the trust index.

## Solution:

We are actively exploring solutions to stop this issue from occurring with future releases. If the MSI was retrieved from a trusted source such as the nTop User Dashboard or an organization's network, selecting the "run anyway" option is safe. Contact your IT team or nTop support with any questions.

**If you can't see the 'Run Anyway' option - Only do this if you've downloaded the MSI from the nTop User Dashboard.**

**\*\*We highly recommend turning these settings back on after you've installed the program**

* Open Windows Security (type in the Search panel on the lower left)
* Select the 'App & Browser control' tab
* Select 'Reputation-based protection settings'
* Turn off 'Potentially unwanted app blocking'

## Keywords:

*windows error install issue warning smartscreen defender certificate window harm*