Blocking in Vulnerability Management triggers full scan in Defender.

Hello Vibbers!

As you've said, it doesn’t really make sense for Defender to run a full scan just because of "Enterprise Unwanted Software" detection, especially if it’s causing performance issues.

You can adjust the scan behavior by modifying Defender’s settings to exclude certain files, folders, or categories from being scanned. To do this, you can add exclusions in Defender’s settings for files related to the Dell Command Update or the 7-Zip version causing the issue. This way, Defender will skip scanning those files and won’t trigger a full scan every time.

In more details or steps to accomplish it: 
To prevent Defender from running unnecessary full scans, open Windows Security and go to the Virus & Threat Protection section. In the settings, find the area for managing exclusions and add the files, folders, or processes you want to exclude from scans. By doing this, Defender will skip scanning those items, helping to avoid full scans and improving system performance.

You can add exclusions for specific programs or files that are causing repeated scans without affecting the overall protection. Once the exclusions are set, Defender will no longer scan those items during future scans or reboots.

I hope it gives you some more ideas on finding a solution.

Ragards!