SMBv1 was deprecated by Microsoft in 2014. PDQ Inventory can be used to track computers in your environment with SMBv1 still enabled.
Individual Machines - Computer Info
To check if a specific machine has SMBv1 enabled, you can view this information under the Computer Details section in PDQ Inventory:
All Computers - Dynamic Collection
You can create a Dynamic Collection or Report to check all of your machines for SMBv1:
1. Click on New Dynamic Collection in the PDQ Inventory Toolbar (or Ctrl + N or click on Collection in the menu and select New Dynamic Collection).
2. Create your Dynamic Collection using the filters below:
3. Additionally, you can convert this into a report by right-clicking the Dynamic Collection you created and select New > Report From Collection. This will allow you to add other fields to the report (OS, architecture, for example) that provide more detailed information.