(Optional) Click the Protected folders option to add (or remove) additional protected folders.Click the Block history option to access the 'Protection history' page to view blocked folder access.Under the 'Virus & threat protection settings' section, click the Manage settings option.

Search for Windows Security and click the top result to open the app.To enable Windows 11's anti-ransomware feature, use these steps: However, since this feature can cause false positives, it's something that you must enable manually. Microsoft Defender Antivirus is a sophisticated anti-malware solution that includes ransomware protection known as 'Controlled folder access.' When this feature is enabled, it monitors and protects your data against ransomware attacks and unwanted changes from malicious applications. How to enable ransomware protection on Defender Antivirus

If you want to permanently disable the Microsoft Defender Antivirus, you can refer to these instructions (opens in new tab). Or you can use the same instructions outlined above, but in step 5, make sure to turn on the Real-time protection toggle switch. Once the computer restarts, the antivirus will enable again automatically. After you complete the steps, the antivirus will temporarily disable its protection to install apps or make specific system changes without conflicts.

Turn on windows defender antivirus