If you have installed third-party protection software in Windows 10, the “Virus and Threat Protection” periodic scanning feature in Security Center may be turned off, and many of the beneficial protection features native to Windows will not work in this case. In addition, even when third-party antivirus software is not used, the three features that are enabled by default, such as real-time protection, cloud protection, and automatic sample submission, provide only basic security protection (Figure 1). If you want to get more personalized security protection, you need to actively set up and make use of three additional security protections.
For ways to implement Windows Defender to coexist with third-party antivirus software, please refer to this article: http://www.cfan.com.cn/2018/0914/131407.shtml.
1. Turn on folder access restriction to deal with blackmail
Under the “Folder Access Restriction” section, click the blue text link of “Manage Controlled Folder Access” (Figure 2); in the ransomware protection window, slide the “Folder Access Restriction In the ransomware protection window, slide the “Folder Restricted Access” switch to “On”; then click the “Protected Folders” link and click the “Add Protected Folder” button to Set the folders to be protected.
To set restricted access to an app, click the “Restrict access to an app by folder” link. If the Controlled Folder Access feature blocks an app you trust, you can click the “Add Allowed App” button, which will allow the app to make changes to the protected folder (Figure 3).
2. Preventing False Positives Adding Exclusions by Hand
If you have software or files that have been misidentified by the system access restriction feature, you can set up the exclusion through the “Add or remove exclusions” link under “Exclusions”. Click the “Add Exclusions” button to add the items to be excluded so that Windows Defender will no longer block them (Figure 4).
Tip: Note that the items that have been excluded may contain offensive threats. Therefore, if it is necessary to test software, please preferably test it in a temporary virtual system environment with the exclusion option turned on, and do not easily release such software on computers with important tasks.
3. self-definition Prevent missing security notification items
The Windows Defender antivirus program sends notifications containing security information by default, so that users are aware of the security status of the device’s operation. However, not all notifications are what the user wants to see. To do so, you can set the types of security notifications you want to receive by clicking “Change notification settings → Manage notifications”.