@Ashman24 When a network asset is being scanned, Lansweeper needs to determine whether the asset is already present in the Lansweeper database. It does this by comparing data pulled from the asset being scanned with data already in the database. This is called the "unique key". For a Windows computer this is: <NetBIOS domain or workgroup name>\<NetBIOS computer name>\1.
When you create your new asset in the database, select Windows as the asset type and correctly populate the Assetname, Mac Address, Model, Domain, and serial. This will ensure that the scanned device merged with the earlier manually created device in the database when it is first scanned.
The status should automatically update to Active after the device is scanned.
For more information on how Lansweeper uniquely identifies assets and how Rename Detection works, you can refer to the below articles: