This is true. Even moving folders from one drive to other drive will trigger it. I download pictures and videos weekly (average 100 images a week). Often my bro

This is true. Even moving folders from one drive to other drive will trigger it. I download pictures and videos weekly (average 100 images a week). Often my browsers will hang when it trying to save the file to the folder because it was waiting for Windows Security to finish their scanning. Windows are proactive (sometime too much) with their securities because of the history of how we handle their securities updates and many many (thousands of many) unpatched Windows OS out there infecting with malware and randomware. Fortunately it have an exclusion list, so the list can add any file, folder, file type and process.