What do you have on drive D that you want to index?
If it is files, then on the Menu go to Data Sources.
Then click the weird little pencil icon to edit Files Options.
You should then see the list of drives that X1 can see and add the locations of your data.
If it is files, then on the Menu go to Data Sources.
Then click the weird little pencil icon to edit Files Options.
You should then see the list of drives that X1 can see and add the locations of your data.