Forum Discussion
Windows Defender Full Scan renders devices unusable for 6-7 hours (while scan is running)
We are using Microsoft Defender for Endpoint and configured daily quick scans and weekly full scans. The quick scans don't create any problems but the full scans are a big problem. Devices are not us...
CoryIntMSFT
Microsoft
MicrosoftHello – there are a few touch points here which I hope help answer your question
1. Full scans are somewhat repetitive for a modern security solution (assuming RTP is always on – and CP/TP are enabled – full scans will not provide additional value from a prevention/protection perspective).
2. Task scheduler does not schedule scans, but it does in fact support “waking up” a device when tasks reach their deadline.
3. Performance impact during a scan can be controlled through CPU usage and caps. Increasing the amount of CPU usage will allow the scan to finish faster but will slow your computer down temporarily (less resources allocated to you as a user). Adversely, lowering the CPU cap (allotting less CPU resources to the scans) will allow you to maintain user performance but will increase the duration of the scanning.
Microsoft is always working to make the scans quicker, while maintaining high security standards.
1. Full scans are somewhat repetitive for a modern security solution (assuming RTP is always on – and CP/TP are enabled – full scans will not provide additional value from a prevention/protection perspective).
2. Task scheduler does not schedule scans, but it does in fact support “waking up” a device when tasks reach their deadline.
3. Performance impact during a scan can be controlled through CPU usage and caps. Increasing the amount of CPU usage will allow the scan to finish faster but will slow your computer down temporarily (less resources allocated to you as a user). Adversely, lowering the CPU cap (allotting less CPU resources to the scans) will allow you to maintain user performance but will increase the duration of the scanning.
Microsoft is always working to make the scans quicker, while maintaining high security standards.
