Learn how to install a scanner and then use it to scan pictures and documents in Windows.

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Learn how to schedule a Windows Defender Antivirus scan at a time and frequency that you choose.

You'll be notified immediately if any threats are found. To scan specific files or folders, right-click a file or folder, select Show more options, and then select Scan with Microsoft Defender. When the scan is …

Microsoft Defender Antivirus continuously scans your device for potential threats and takes immediate action to neutralize them. This proactive approach helps to prevent malware infections and keeps …

What's the difference between a full scan and quick scan? A quick scan looks for viruses and other malware in all the places they are most likely to hide. It’s a good choice when you’re just checking on …

Scan your document according to the instructions for your scanner, and save it to your computer as a .pdf file. In Word, click File > Open. Browse to the location of the PDF file on your computer and click …

Dec 25, 2025 · You can continue to scan documents in the app until January 25, 2026. After that, you will not be able to create new scans, but you will still be able to access your previous scans if the app …

The health report starts off by showing you the last time a health scan was run. The time displayed should be the current time, since Windows Security runs a scan when you open the Device …