You could open
Assets, filter the
OU column for foreign OUs, select all assets and hit
Delete.
If you would like to delete a large number of assets you could do this under
Configuration\Database scripts, section
Database scripts as well. We recommend that you perform a backup before. The following script would delete all computers and their connected data in an example OU:
Delete From tblAssets Where tblAssets.AssetID in
(Select tblADComputers.AssetID from tblADComputers
Where tblADcomputers.OU like
'%OU=YourSubOU,OU=YourOU,DC=YourSubDomain,DC=YourDomain')