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PowerShell Scans Windows: Detects Viruses Without Windows Security! 🦠⚡

MasterTrend Insights by MasterTrend Insights
July 1, 2025
in Security
Reading time:Lectura de 4 minutos
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Contents

  1. PowerShell Scans Windows: Scan and Remove Malware Easily 🔥🛡️
  2. How to open PowerShell in Windows?
  3. 1. Check the status of Windows Security
  4. 2. Update Windows Security
  5. 3. Perform a full virus scan
  6. 4. Run a quick scan using PowerShell
  7. 5. Run a Windows Security offline scan
    1. Related Posts

PowerShell Scans Windows: Scan and Remove Malware Easily 🔥🛡️

If you're using an unactivated version of Windows, you may experience issues using Windows Security. Even if you can access the security app, you won't be able to update its virus database. ⚠️

So, if you are unable to access the Windows Security application for some reason, you can rely on the utility of PowerShell to scan your Windows for viruses and malware. 🦠

How to open PowerShell in Windows?

Opening PowerShell in Windows is very simple. Here's how to launch it with administrator rights.

Powershell

  • Seeks PowerShell in Windows Search.
  • Right click on PowerShell and select Run as administrator.

1. Check the status of Windows Security

Before moving on to the next methods, you need to make sure the security app is running on your device. This method won't work if you're using another security program. 🔍

In the PowerShell window, you need to run the following command.

Get-MpComputerStatus

Check Defender Status

The above command will list all the details of Windows Security. If the security tool is active on your system, it will display True in the field AntivirusEnable. ✅

2. Update Windows Security

If you install all Windows updates on time, you won't need to follow this method. However, if you don't update, you'll need to update the Windows Security app manually. 🔄

Update-MpSignature

Update Microsoft Defender

3. Perform a full virus scan

If you haven't scanned your computer in a while, it's a good idea to run a full antivirus scan. You can use PowerShell to run a full antivirus scan on your PC. A full scan checks every file on your Windows computer, so it may take a while. 🕒 To perform a full antivirus scan, run the following command:

Start-MpScan -ScanType FullScan

Running a Full Virus Scan

Since the full scan may take some time to complete, you can instruct Windows Security to perform the scan in the background. To do this, run the following command.

Start-MpScan -ScanType FullScan -AsJob

Microsoft defender to perform the scan

4. Run a quick scan using PowerShell

The full scan takes time and may slow down your device. In that case, you can use the Windows Security Quick Scan featureTo run a quick antivirus scan using PowerShell, run the following command and press Enter.

Start-MpScan -ScanType QuickScan

Run a Quick Scan using PowerShell

5. Run a Windows Security offline scan

For those who don't know, the offline scan feature removes malware that's difficult to detect. However, the offline scan is run from a trusted environment. That means you could lose your current work. 😟

Before running the offline scan, make sure to save all open files. To perform an offline scan via PowerShell, run the following command:

Start-MpWDOScan

Run Defender Offline Scan

This guide explains how to use PowerShell to scan Windows by malware. I hope this article is helpful. Share it with your friends! If you have any questions, let us know in the comments below. 💬

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