Download Microsoft Safety Scanner for Windows 11
Microsoft Safety Scanner helps you clean your Windows 11 PC by finding and removing malware.
It’s a free, portable tool that you run yourself when you need it, unlike your regular antivirus software that runs all the time.
This on-demand scanner is perfect for when you think your computer might be infected and your main antivirus isn’t working properly or is turned off. It acts as a strong backup security option.
You can download the latest version, 1.395.525.0, to get the most recent security threat definitions.
Visit the official Microsoft Safety Scanner download page and select the correct version for your system. After downloading msert.exe, right-click it and choose “Run as administrator” to start the scan.
System Requirements and Expiration
Your Windows 11 PC needs standard hardware to run the Microsoft Safety Scanner, and it works on both 32-bit and 64-bit systems.
How to Download and Use Microsoft Safety Scanner
- Visit the official Microsoft Safety Scanner download page.
- Choose the version matching your system architecture (64-bit is standard for Windows 11).
- Locate the downloaded msert.exe file in your folder.
- Right-click the file and select Run as administrator. Requires admin privileges.
- Accept the license agreement to proceed.
Visit the official Microsoft Safety Scanner download page and choose the version matching your system architecture; 64-bit is standard for Windows 11. Locate the downloaded msert.exe file in your folder. Right-click the file and select ‘Run as administrator’ to start. This requires administrator privileges, so accept the license agreement to proceed.
If you want to verify the file's integrity, you can check its SHA-256 signature on the download page. More advanced users can use command-line options like /f:y to automatically start a full scan.
Troubleshooting Common Errors
If Microsoft Safety Scanner fails to launch, ensure you have administrator privileges to run the tool. If the scan hangs, try running Microsoft Safety Scanner in Safe Mode. If anything unexpected happens, or if Microsoft Safety Scanner closes before it's finished, check the log file at C:\Windows\debug\msert.log for details.
Summary
Microsoft Safety Scanner is a free, portable tool for Windows 11 that helps remove malware, especially if your main antivirus is blocked.
Does Microsoft Safety Scanner replace my antivirus?
Is Microsoft Safety Scanner free for 🪟 Windows 11?
Yes, the Microsoft Safety Scanner is completely free for all Windows 11 users. It is provided by Microsoft as a portable utility to help users clean their systems. You do not need a subscription or a license to download and run the tool for personal use on your devices.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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