Exclude unwanted assets from being scanned during various scans by adding them to the excluded devices list.
Exclude Devices/IP using Scan Settings
To exclude a device/IP from the scan using the scan settings,

Note: Exclusion will not happen if devices are added from remote AE server and also while importing scanned xml's manually.
Exclude Device/IP from a specific scan.
To exclude device from a specific scan, i.e Network scan or Windows Domain Scan


Exclude IT assets from scans (From Asset Listview)
You can also exclude different IT assets from the scan in the asset listview itself.
To exclude IT assets from the scan,


The selected assets will be excluded from future scans.
Note: Clicking on Exclude will exclude the asset from future scans whereas clicking on Exclude & Delete will remove assets from the asset list itself.